So this will be my first attempt at building a computer myself (hopefully it will be a little less daunting than it seems!) and I'm posting this thread to get opinions on the parts I will probably buy. Comments on any incompatabilities or known problems with any of the items, or suggestions for better replacements, would be nice to hear (or informing me of any parts I may have missed out)

.
Abit NF7-S V2.0 Socket A nForce2 - £82.17 (komplett.co.uk)
AMD Athlon XP2700+ 2.17 GHz BOXED - £110.20 (kompett.co.uk)
Western Digital Caviar 80GB IDE 7200RPM - £68.03 (kompett.co.uk)
512MB DDR PC3200 x 2 - £129.22 (crucial.com)
Sony Floppy Drive, 3.5" 1,44MB - £10.88 (kompett.co.uk)
Midi Tower Beige 300w ATX - £21.84 (puterz.co.uk)
Leadtek Winfast A280 GeForce4 Ti4800 128MB DDR - £131.60 / HERCULES ATI RADEON 9500 PRO 128MB DDR - £160.65 (overclockers.co.uk)
19" Sony Wega Trinitron - £159 (ebay.co.uk)
Microsoft Windows XP Pro OEM - £90 (ebay.co.uk)
I have a couple of questions myself. Firstly, is the slight gain in speed on the 2700+ worth the extra £30 (US$50) over the 2600+? Secondly, is the 9500 PRO worth the extra £30 over the Ti4800? Though for the graphics card I may use my current video card until the price of the 9700 Pro drops in a few months...
Thanks for the help

.
Oh yeah, no CD or DVD drive because I'm using my current ones.