Need help on mounting radio.

Hey wankers! I need your help on a very important decision. I bought a new radio and debating on taking the old stock A.M. radio out. The problem is that I'll have to cut the stock dash to make this new deck fit. Or, should I mount it under the dash and leave the old radio in. What have you guys done? I've also explored the glove box, but think its too much of a pain. Throw some pic's in too so I can admire your creative skills and to give me idea's.