Zorg :
Dude, you got a Dell.

Your stuck.
I'm hardly stuck. I've got about $800 total in a Core2Duo system with an upgraded PS, 2GB RAM, a 8800GTS factory OCed to 580MHz and a legit copy of Vista HP. The whole thing was quick and easy to slap together and if/when I want to upgrade the CPU it looks as if that is possible as well. About the only thing I can't currently do is OC the MB/CPU. If I really wanted to do that I could always get a new MB.
There really is no downside besides the overclocking. My newest and oldest systems are both Dells and both are working just fine (the older Dell is nearly 8 years old and still kicking). In between the Dells are 3 homebuilts that were a lot more trouble to get put together and get working correctly. I honestly can't say where the next system will come from. Dell has a pretty good chance of earning my repeat business so long as they make their systems upgradable.