Hello xander5000! Welcome to AT General Hardware forum
$2000 is a lot of money, but if you buy on Alienware, you may not be able to buy as much as you wish. If you were to assemble your own computer, $2000 would do wonders.
Here's a possible setup that you can build:
Antec 1040 case and power supply $120
Athlon XP 2000+ . . . . . . . . . . . . . . .$270
Alpha 8045 HS and fan of choice . . $40
Abit KR7A-Raid board . . . . . . . . . . . $150
Geforce 3 Ti500 . . . . . . . . . . . . . . . $300
2X Seagate Barracuda 4 40gb . . . . $200
SB Audigy MP3+ or X-Gamer . . . . . .$100
19" aperture grille monitor . . . . . . . $300
32x CD burner . . . . . . . . . . . . . . . . .$150
16x DVD ROM drive . . . . . . . . . . . . . $50
512mb Crucial PC2100 DDR ram . . . $150
Keyboard and Mouse . . . . . . . . . . . $20
That's $1850 which leaves room for shipping and tax and stuff like that. Not bad at all for $2000, is it? You can add a few more bucks for a modem or network card if you need them. $2000 does wonders if you build your own system. And it'll look much like an Alienware comp (same case

)
In addition, with that much money, nForce boards are worth a look. And don't forget to raid the two Seagate drives

Heck, with that much $, you can raid two Western Digital Caviar Special Edition 120gb drives
