Newegg does not ship to the U.K., you will have to find a U.K. retailer who will, such as ebuyer. As for the previous question, your PSU choice is largely determined by the graphics card you want, however, the 600W unit will power all but the most powerful graphics cards on the market. You are going to be purchasing a mid-ATX case, keep in mind that in some of those cases, large graphics cards may not fit, and, if they do, should not be ran in a Crossfire or SLI configuration. Further continuing what I said in the previous post, Intel is replacing the LGA 1366 socket with the LGA 2011 socket, this means all motherboards and CPU's currently using the LGA 1366 socket, which includes the CPU you've chosen and motherboard, will be rendered obsolete. Further, the new LGA 2011 CPU's and motherboards will not be backwards compatible with the LGA 1366 parts out today, thus ending your future upgrade options.
You did not list what you are going to be doing with this PC, so it is difficult to determine what the best setup is for your case but here are a few suggestions for you, I will be replacing the CPU and motherboard as everything else will be compatible. To save cash and to keep upgrade routes open:
General home PC - One where basic tasks will be performed, no gaming, rendering, or anything else which might stress the system:
Motherboard: Asus M4A87TD/USB3 870 Socket AM3
- This is AMD's motherboard which takes AM3 CPU's and DDR3. Like most AMD 8-series chipsets, this one allows for SATA 6 and USB 3.0. This is a budget motherboard that does not have a graphics card built-in nor does it allow for Crossfire since it has only a single PCI-E X16 slot.
CPU: AMD Phenom II X2 555 Black Edition 3.2GHz
- This is a dual-core CPU which will handle all the standard computing tasks. It is also good for gaming in situations where you don't turn all visual settings on high. This is a Black Edition CPU which means its multiplier is unlocked, making overclocking very easy.
Budget gaming PC - This setup is for people who want a little more power for games, but generally don't need, or want, the hardware to run the latest games at their maximum graphics settings.
Motherboard: You can keep the one in the general home PC build as it will work well here too. The removal of SLI or Crossfire should not be much of a problem at this level since adding more cards increases costs.
CPU: AMD Athlon II X4 635 2.9GHz
- The Athlon II series of CPU's can hold their own well. This budget quad-core CPU can handle most games at a reasonable level of quality. However, the Athlon II line, unlike the Phenom II, does not have L3 cache and L2 cache is limited, placed head-to-head with a Phenom II X2 clocked at 2.9 GHz., the Phenom II would win. However, if a quad-core optimized game or application is used against that Phenom II X2 CPU using the Athlon II X4, the Athlon would win as it has two more cores.
Mid range gaming PC - This is where the features of a motherboard start to come into play, also, your graphics card will be more heavily used, so you will need a good one to have decent framerates.
Motherboard: Asus M4A88TD-V EVO/USB3 880G
- This has the same features as the above model, though with a few extras. This motherboard allows for Crossfire, though, it will not be as fast at doing Crossfire as a higher-end motherboard. It also comes with on-board video which should not be used in gaming. If you are making a general purpose PC and don't want to spend money on a powerful graphics card, this motherboard will do well in that situation since you don't need to buy a graphics card unless you want one.
CPU: AMD Phenom II X4 955 Black Edition Socket AM3 3.2 GHz
- This is a very good CPU for gaming. It's quad core and operates at a high frequency, further, it is Black Edition so you can squeeze even more power out of it. If you are gaming at a reasonable resolution of 1280 x 1024 or greater, differences between CPU's are minor at this level as the graphics card plays a much greater role in framerates.
High end gaming PC or rendering - This should be considered if you want a high performance PC what will handle gaming and/or rendering. The graphics card will be heavily used and you may, later on, want to Crossfire graphics cards.
Motherboard: MSI 890FXA-GD70 890FX Socket AM3
- This 890FX line of AMD motherboards is their high-end. These offer high-speed Crossfire with two graphics cards and have an option for up to four. As this is a high-end motherboard it is designed for overclocking and other high stress situations. Like most in the AMD 8xx series, this also has USB 3.0 and SATA 6.
CPU: AMD Phenom II X6 Black Edition 1090T 3.2GHz
- If all you are doing is gaming, the Phenom II X4 955 will be more than enough. However, if you are rendering or performing tasks which can use all six cores, this CPU will come in handy. It has an automatic overclock feature which increases the speed of three cores if the others are not active. It too is Black Edition and easily overclocked.