Is there anything that I have missed out from this list of parts / prices, other than an OS?

JETWAY MOTHERBOARD - PT800DBP FOR PC Pentium IV (P4) processor support      38.99
CPU, INTEL, PENTIUM 4, 3.06 GHz / 512K / 533 FSB (3066 MHz), SOCKET 478, 32K, 512K      164.99
DDR DIMM - 512 MB RAM, 184 PIN, 400 MHz / PC 3200, SYNCHRONOUS   (1GB)      125.98
SOUND BLASTER 5.1 SURROUND PCI SOUND CARD FOR PC (CREATIVE LABS SOUND CARD)      28.99
MERCURY **PCI INTERNAL** 56K V.92 PCI VOICE / FAX / MODEM      8.99
AKASA (AK-824cu-BL) HEATSINK & FAN FOR PC      13.99
MERCURY USB 2.0 - 4 PORT CARD (PCI) FOR PC      8.99
IDE HARD DRIVE - SEAGATE BARRACUDA 120 GB, **E-IDE**, 7200 RPM, ST3120023A      58.99
INTERNAL 3.5" FLOPPY DISK DRIVE FOR PC      6.99
CDRW - LITE-ON CD-RW, 52 x READ 52 x WRITE 32 x RE-WRITE, INTERNAL, E-IDE, 7800 KB/SEC, 2 MB, TRAY, 1 YEAR      25.99
17" RELISYS AMTE770 **BLACK** CRT MONITOR FOR PC      86.99
SPEAKER - A4 TECH SOUNDSTAR MULTIMEDIA STEREO SPEAKERS FOR PC      8.99
OPTRONIX **SILVER & BLACK** ATX CASE INCLUDING KEYBOARD AND OPTICAL MOUSE      49.99
SAPPHIRE ATI RADEON 9800 XT 256 MB AGP GRAPHICS CARD FOR PC      286.99

What is going to hold back it's performance? and what is there that I can 'skimp' on price wise, such as cutting down to 512MB ram? £915.85 is a little stiff for a 14y/o...
Dan

How does htis look for a gaming PC: http://maxxpc.com/computers-maxx-4d.html

Quote:
Thats got a 350Watt PSU, case and mouse / keyboard in it.

From UKparts.com the SAPPHIRE ATI RADEON 9800 PRO AGP GRAPHICS CARD FOR PC is £66.99, making the price £795.85.... Sounds better.. Why will the ATI cards make other cheaper? And would you reccomend 64bit instead of P4?
Dan

I was intending to run Win XP, CFS1, FS2002 Pro and later Fs9 (or 10!!), along with MS office 2000.
Dan