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24 inch iMac all the way. The base model 24 inch has more memory, a faster processor and more RAM, all for the same price. Plus you get the keyboard and mouse included.
 
I'm going mac mini and LED Display.

The mac mini will just be my media centre/safari/msn/word processing machine.
I have a MBP for the heavy lifting.

Personally the imac doesn't make sense to me. I mean its beautiful... but I get a new mac every 12 - 18 months. It seems silly buying a new display every time as well, and with the imac thats what your doing.
 
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