Hello, I'm new to the Mac world! I just got my first Mac a few weeks ago, a new Alu 20" 2GHz iMac with the beefed up HD. I was wondering, are there any large, and mostly useless, files that come pre installed that can be easily deleted to save space? Such as worthless fonts and so forth. I'm about to start formatting my HD to add Windows and I'd like to be as efficient as possible with the space I have. By the way, what would be the most common amount of space given to the Windows partition among those of you who have done so? Just wondering, I'm thinking 30GB? Anyway, thanks in advance to any replies!