I'm not entirely sure about the date created part, but, after looking around in some of my directories, I see that some of my files from 2001 still give modified dates from 2001. I've moved these files between three different hard drives on two different PC's. I'm not sure, but creation dates and modified dates are stored in a file's metadata. The creation date will be date the file was initially written to the hard drive, but the modified date will be the date any changes to the file have been saved. There are some things you still need for the PC.
You've got the motherboard, CPU, RAM, and GPU figured out. Since you are changing the motherboard, you will need a new copy of Windows. The OEM edition that was installed on your PC is paired to the motherboard. If you change motherboards, the license becomes invalid. Microsoft believes the motherboard to be the core of the PC, so if you change it, you are in essence getting a new PC. Retail copies of Windows may be moved from one PC to another without this restriction. Anyway, you will need the 64-bit edition of Windows, in this case you can purchase Windows Vista Home Premium now and get a free upgrade coupon to Windows 7 when it is released. If you want to do this, you can purchase it here
. Alternatively, you can download a free trial copy of Windows 7 Enterprise here
. If you do this, that copy of Windows 7 will be valid for 90 days, after that you have to buy an operating system. Regardless, Windows 7 Enterprise must be deleted after 90 days. You will also need an optical drive, but you can salvage that from your old PC. Also, the computer case may be too shallow for a multi-graphics card setup. Depending on the case, some graphics cards are too long for mid-ATX towers which you have. I have two PC's, one is a mid tower. I cannot install anything longer than a GeForce 8800 GTS 640MB in it because the hard drive cage would block the drives. That card is 8 inches long, whereas an HD 4870 X2 is 11 inches long. I could remove the cage entirely and move the drives to the other drive bays but I already have a large full ATX case for my gaming so it would be largely pointless to move the thing. Finally, if you want a new hard drive, you should get a SATA drive with a 32MB cache for added performance. The Western Digital Caviar Green WD5000AADS 500GB 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive