ok so i forgot about this thread, i am going to upgrade the PSU so i can get a better graphcis card also.
the PSU i want to get is this one
Corsair Builder Series CMPSU-600CX 600W Power Supply
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=150980671959&ssPageName=ADME:X:RTQ:GB:1123
just not 100% sure if this is going to be ok for my machine, then once that it all ok and up and running, i am going to get a Geforce 560 ti.
this is my current specs
Summary
Operating System
Microsoft Windows 7 Ultimate 64-bit SP1
CPU
Intel Core 2 Quad Q9300 @ 2.50GHz 55 °C
Yorkfield 45nm Technology
RAM
4.00 GB Dual-Channel DDR2 @ 399MHz (6-6-6-18)
Motherboard
Dell Inc. 0TP406 (CPU)
Graphics
DELL E228WFP (1680x1050@60Hz)
ATI Radeon HD 2600 XT (Dell)
Hard Drives
466GB Seagate ST3500620AS (RAID) 34 °C
466GB Seagate ST3500620AS (SATA) 35 °C
Optical Drives
PLDS DVD+-RW DH-16A6S
Audio
AMD High Definition Audio Device