Well the mini+Dell will cost less, and if that's an important factor then that's a good decision. I do think the iMac is a nicer machine though, and the monitors in the iMacs are a heck of a lot better than the Dell 22" (which is part of Dell's cheaper line of displays...the 2007wfp, for example, is a beautiful display). I have the Dell 22" at work and I hate it...I'm getting it replaced with a 20" Cinema Display next week. Then again, I'm doing design work. If you're not doing gaming or design, the mini is fine. If you can spare a little extra cash, the iMac is a bit more powerful, has bigger hard drives, and is easier to upgrade the RAM.