Like the person above, i'm getting aggrivated when every time someone says they wanna build a rig with an intel, everyone gets in their face about AMD, even if they say that they don't want it. Especially when this rig is NOT mainly for gaming, its for office application, internet, etc. (guessing a bunch of multitasking), exactly where the 2MB of L2 Cache are going to shine on the 630. So please, the man said he didn't want AMD, leave it at that.
I recommend something more than 300W for a PSU, the CPU itself uses up 84W so i'd leave myself a bit more room with the PSU. I'd recommend a motherboard with an intel chipset, (DDR2, thats where its headed), also instead of 512 consider 1GB of DDR2 (if u choose intel chipset), consider pqi Turbo DDR2 ($40 for 512, so get 2 sticks). Thats about it, take care man and good luck with the build.