I just really hate the thought of siting at a desk again....seems the laptop has spoiled me, but i keep telling myself all i need is a 20" imac....but my eyes are drawn to the 24"... I could get a mac mini and hook it up to my 42 lcd....but did that and found it un comfie to read and work like that..
Maybe you should just get an external monitor and be able to work at the desk or be mobile.