I built my computer, and the prices on TONS of computer related products are really falling. Ram especially...
Anyways, for a very nice budget PC, check this out $499. Not going to be the most upgradable, but still a good machine. Upgrade the video card and you're set: http://configure.us.dell.com/dellstore/config.aspx?c=us&cs=04&kc=6W300&l=en&oc=bddwbbm&s=bsd&ACD=qIpmRjVEu6AJAkm8tYPe&AID=0038386869
AMD Athlon™ 64 X2 Dual-Core 3600+
Genuine Windows Vista™ Home Basic
1GB Dual Channel DDR2 SDRAM at 667MHz- 2DIMMs
80GB Serial ATA Hard Drive (7200RPM) w/DataBurst Cache™
16x DVD+/-RW Drive
20 inch E207WFP Widescreen Digital Flat Panel
NVIDIA GeForce 6150 LE Integrated Graphics GPU
Integrated 7.1 Channel Audio
Accessories
No Floppy Drive Included
No Modem
No speakers (Speakers are required to hear audio from your system)
Dell USB Keyboard
Dell® 2-button USB mouse
Software
Microsoft Works 8. DOES NOT INCLUDE MS WORD
No security subscription (McAfee 30-day trial)
Service
1 Year On-site Economy Plan
6 Months of America Online Membership Included
Purchase is not intended for resale.
Also Includes
E521
Windows Vista™ Basic
Adobe® Acrobat® Reader 7.0
No Digital Music Software Requested
Corel Snapfire Basic - Organize and Edit your photos
Integrated 10/100 Ethernet
If you're looking to build your own, prices on everything are really falling.
You can get 2GB of DDR2 Ram for about $120 if you look around.
A decent AMD dual core processor will run you about $140
A nice motherboard for about $75
the 8600 GTS by NVidia can be had for about $140 these days (its a directx10 card)
I got a 200GB hard drive for $70
A case and power supply can be had for $100 easily.
$150 for Windows Vista
Add on a 19" lcd monitor for $150 and you can have a very nice upgradable PC for not a lot of money.
If you want to build your own PC, let me know and I can give you places to find all this stuff at the above prices