ya, if you smell by the exhaust of your laptop when it's under load, it smells like a hot iron ready to press some shirts / or a portable electric heater, minus the dust (well, sometimes not-so-minus the dust..

)
Anyways, my desktop cost ~$1000 after I got done putting all of the goodies - multiple hard drives, started with a 160GB and a 320GB, upgraded to dual 500GB, now it
has had dual 2TB hard disks... it's still running pretty good, problem is it can't keep up, it's got the max CPU it can handle (AMD Athlon XP 3200+, 2.2 GHz, single core, no SSE2 (darn it!) with 2GB DDR RAM). I've stopped running it for now, I'll probably put it back together at some point, but at this point, the place where I'm living is pretty cramped with all of our stuff, and I also have a storage unit.
But it kept pace with the flash Pentium 4 3.0 GHz Hyper-Threading CPU powered units, with a fraction of the heat. The lack of multiple cores really shows now, though, when you run a lot of programs on it. IMHO Nuke is right - $800-$1200 rigs are the way to go, just make sure they are upgradeable (name-brand computers sometimes rip you off and intentionally cripple their systems so you can't upgrade them - case in point, I've seen Gateways with the place on the board for PCI-E graphics card slot, but no actual slot, they want you stuck with on-board graphics, if you want more power, pony up for the next better version of the same computer that isn't nerfed). Also, systems will have only a few slots for RAM, etc... it's all a $$$$$ game. Put your own computer together. If you don't feel up to it, research online and ask around here, you'll be happier. Trust me. Just remember to ground yourself to the computer case and/or use an ESD wrist strap when assembling the computer. Don't wear anything that makes you go snap crackle pop (wool sweaters), if you have a rug, put down a piece of plastic / rubber / whatever... that will help, however remember plastic still generates ESD
so you must still ground yourself to the chassis, or otherwise, when you put your components in, the extra charge on you will travel to the case through the component. You don't want that. Just go slow, use your head. If it doesn't work, don't panic, you probably missed a wire or have a loose component somewhere. Retrace and try again... hmm... I'm rambling. Sorry.
