What would you change? Mac Pro

Heres My list

* Two 2.8GHz Quad-Core Intel Xeon
* 2GB (2x1GB) + (Crucial 2x2GB - 2 packs)
* 500GB 7200-rpm Serial ATA 3Gb/s
* NVIDIA GeForce 8800 GT 512MB
* Two 16x SuperDrives
* Apple Mighty Mouse
* AirPort Extreme Card (Wi-Fi)
* Keyboard (British) & User’s Guide (English)
AppleCare Protection Plan for Mac Pro (w/or w/o Display) – Auto-enroll
Dell 2408WFP 1920x1200 (2)

Would you Change anything?

Uses - im a power user so love power but don't use much
CS3 (CS4 if good)
Internet
Messaging
VMware - Linux ubuntu 64bit
Programming - Hoping to learn how to use Xcode
Few Games
Music
Film Editing (tampering around)

I was thinking of joinning Apple Developer Scheme for £500 to get £1000 off? is there any reason not to?

thanks!