Re: totaly lame Partition question..
I suggest that you store all your programs and your Windows installation on the same partition, cause if your Windows installation gets corrupted, you can't just install it and have all the programs work properly. It's a lot easier to just install all the programs again.
I give my Windows/programs partition 10GB (10240MB), to give plenty of space for all the files, as well as space to breathe.
There's a partition manager on the XP Setup disk that you can use during installation of XP.
Windows XP Pro 17" LCD Monitor (1280 x 1024)
nForce3 250 Chipset Athlon 64 2800+ w/ C'n'Q
1 x 512MB DDR400 CL3 SDRAM 40GB IDE 7,200rpm HDD (8MB Cache)
nVidia GeForce MX420 64MB PCI On-Board Audio