Check my order please, been a while and I don't want to waste $!

[Chopper]

Basically my rig is a few years old, currently resides in a Coolermaster Praetorian chassis I would like to keep, spec. is as follows:

Operating System
MS Windows XP Professional 32-bit SP3
CPU
Intel Pentium 4 540
Prescott 90nm Technology
RAM
2.0GB Dual-Channel DDR2 @ 334MHz 5-5-5-15
Motherboard
MICRO-STAR INTERNATIONAL CO., LTD MS-7176 (Socket 775)
Graphics
DELL S2409W @ 1920x1080
DELL S2409W @ 1920x1080
256MB RADEON X850 Series (ATI)
256MB RADEON X850 Series - Secondary (ATI)
Hard Drives
195.36GB Seagate ST3200822AS (SATA) 28 °C
195.36GB Seagate ST3200822AS (SATA) 28 °C
Optical Drives
SONY CD-RW CRX230E
SONY DVD RW DW-D22A
ELBY CLONEDRIVE SCSI CdRom Device
Audio
Realtek High Definition Audio

I'm looking to order the following:

Anything you would change?
Will this all fit inside my trusty Coolermaster Praetorian?
Could I go to the Asus 5850 graphics and not suffer?
Is there anything that looks incompatible with something else?
Do I really need Windows 7 Pro 64-bit or would Home 64-bit do just as well?

 

[Chopper]

Sorry, fixed I messed up the image link.

 

[Chopper]

Hi thanks for the feedback,

I hadn't selected an SSD due to concerns about lifespan/fragmentation/trim etc, should I forget that nonsense and get me one?

I wasn't sure what cooler would fit, so figured I would run the system in and then look at other cooler options?

920 is only £10 cheaper, seemed worth the extra £10 for a bit of extra beef.

I went for the 1000w PSU because my current rig can't pump enough power for all my hard drives (3) and optical drives (4) so didn't want to have to disconnect like now.

I pretty much use it as a encoding rig, the odd game, and used to like a bit of oc'ing.

No plans at present to use duel graphics unless the single card can't power my dual monitor setup, I like games like command and conquer.