Please excuse any faux pas' I might make as I am a total Newbie to the realm of Apple products. I like so many, refuse to upgrade to vista. (hardware and all). I have been running linux for the past two years and have had my eye on the mac product line for quite some time. anyhow to get to the questions I have: (i) What would be the major difference in buying a iMac vs mac mini, other that supplying your own keyboard,monitor,mouse. I think the most cpu intensive thing we may do is taking footage we have on mini-dvd and turning into a decent presentation. ie: re-authoring...Im not looking to have shrek hand my Child her birthday cake or anything ;o) (ii) Wireless Mighty Mouse: How often does one need to replace the batteries. I know Ill get the respose "depends on how much you use it" but Im looking for an average. ie: 1 day if you use it extensively or 1 week if you don't touch it at all. thank you so much for any guidance you can give. I really hope apple gains a lot from microsloths garbage!