Choosing my first Mac...

I spent a good deal of time at the local BB today and I still haven't made up my mind. I do almost everything from my iPhone. I use the local library or my parents house for updates and iTunes. I've never owned or bought a computer. This will function as my main computer from now on. I'd like to find best possible solution with the most diverse options and I'd like to get a year out of the purchase. I don't play games, obviously. I use the WWW for email, browsing, etc. I don't have a desk just my kitchen table and the dresser stand for the HDTV.

The only other electronics I'm running are a new 32 Samsung HDTV and an old Magnavox that plays DIVX:



My brother builds HDTV and DVD's so I can watch on the Samsung since the building I live in has horrible reception. I don't actually watch regular TV and the only time I spring for cable is in football season. I kill it right after the season ends.

I'd like to lose the DVD player and use whatever I choose as it's stand in. The Mag has taken a beating and is ready to retire.

So my choices are:




A 15 Pro, 17 Pro, 20/24 iMac or the Mini. The 13 Pro and the Air are out. The screen is too small for my likeing.

The Mini might work like this:



And give me a HDTV, WWW, DVD player, mobile hub. The wireless keyboard and mouse means I can run these from my table.

The Pro's are so nice though:



The 20 makes a very nice computer:



The 24 is HUGE to me BUT I could sell the Samsung and use the cash for the larger iMac and just run everything through the 24....



Both the 20/24 would use the wireless items. I hate wires.



I may be overthinking this. Thoughts? Spare change? I'm willing to listen to anything.