I ran across this today and thought it was cool....something to think about vs. iMac if you want something you can upgrade easily down the road:

[Link: shopping1.hp.com]

Pretty damn slick IMHO. I have not been a big fan of HP laptops, but their business desktops and workstations are solid. I normally build my own PC desktops though. I get better tech. support that way. :)