Posted 07 September 2010 - 11:51 PM
Yes on the memory, as for the power supply, it depends on that PSU's specifications.
With memory, there is a widely accepted design standard, so memory from one country will work in another. As for the power supply, that can be a little tricky since the U.S. runs on 110V at 60Hz and the U.K. runs on 240V at 50Hz, and power plugs might be different. You can buy converters and transformers, but you might be better off buying a power supply unit in the U.K. to eliminate compatibility issues.