Im all for the first option, desktops are a pain to lug to and from uni, plus depending on digs and flatmates you could get your main rig stolen. Another thing is that depending on the degree and the netbook, you might not have the uumph to run some of the programs you need on it. At the mo, im sitting with a 17" hp-dv7 from a year and a half ago and it would rock all those games fine for under 1000 euro.
Then current gen dv-7 has around a 1GB dedicated for the same price so I assume you could pick up a budget gaming 15" laptop for under $1000
Then current gen dv-7 has around a 1GB dedicated for the same price so I assume you could pick up a budget gaming 15" laptop for under $1000