How's your disk usage?

I have all the same machines that you own and I am super happy with them all. But as my needs are not as intensive I have it pretty barebones with just the addition of iWork 09. I have run CleanMyMac to remove the unneeded languages and also uninstalled Garageband gaining back over 3G. Right now my free space is about 50G. My goal is to keep this machine just for web surfing and word processing via iWork and use my iMac at home for photos, iTunes, CS5 and other heavy lifting.

Out of curiosity how much space does CS5 take up? It might be cool to through that on here.

I'm also planning to rip DVDs on my iMac via RipIt and put them on a 16g thumb-drive for a quick transfer to the MBA for screwing off at work- which is pretty much what I'm doing at this very moment......