- Core 2 Duo E6750 to replace Athlon XP 2500+
- Radeon X1950 Pro PCI-E to replace Geforce 6600GT AGP
- 2GB of DDR2 memory to replace 1GB of DDR memory
- A motherboard to support it all
The games that broke the camel's back (ie. are practically unplayable on my current computer) are Armed Assault, Supreme Commander and Test Drive Unlimited.
I just wish I wasn't so tight on money so that I would feel a bit more comfortable about this update... :P