$250 Burning a Hole - I gots the itch!

Hey All...

I got the itch again, but don't know what to spend my money on? My rig runs nice right now, but if you ain't improving, you ain't trying. Here is my main rig:

P4 2.4Ghz (533fsb)
Gigabyte GA-8SQ800 Mobo
512 MB PC2700 Crucial (Micron) - running in dual channel mode (2x256)
ATI Radeon 9700Pro (Sapphire)
On-Board Realtek AL650 Codec Sound
Antec Smart Power 400W PSU
Lite-On 52x24x52 CD Burner
CanoScan N676U Scanner
Gravis GamePad Pro (USB)
Sony Dual Shock Controller (USB)
Logitech MX300 Optical Mouse
Standard Keyboard
Standard Floppy
80GB Maxtor HDD (7200/ATA133/2mb cache)
20GB Maxtor HDD (7200/ATA66/2mb cache)
Zip 250MB Drive (USB)
Netgear 10/100 NIC
Linksys 4-Port Etherfast Router (BEFSR41)

Now, I am not interested in changing the mobo/cpu at this time, but what can you upgrade for the amount that is available? Obviously, Audigy 2 first comes to mind, but I'm not that big of a sound guy. Also, my HDDs can use some upgrading...

Anywho, any comments, observations, thoughts would be greatly appreciated. Thanks!

RatPadz Model GS Mousing Surface/ Mouse $14.99

Logitech BLACK Elite Keyboard - RETAIL $33

CORSAIR MEMORY XMS Extreme Memory Speed Series 512MB 64MX64 PC-3200C2PT With Platinum - Silver Heat Spreader OEM $108

Creative Labs Sound Blaster Audigy Gamer $78

Large pizza hut, pizza, meatlovers, delivered ~$15

Total (including pizza): $248.99 delivered newegg.com

How about a DVD burner? Sell those dual sticks of 256 and use the proceeds with the remaining $$$ to get a couple sticks of 512. Mmmmm dual channel 512's.