I currently have enough money to buy either of these systems (and don't want to save up to pay for a PS3), which one should I get?

360
Advantages:
Newest generation console
Be able to play past Xbox games (never had an Xbox)
Be able to play cool new games (Dead Rising)
Plays many games that the Wii won't get, but the PS3 will.

Disadvantages:
More expensive
Games very expensive
I don't have an HD TV
Seems to be many more good PS2 games than Xbox games
Not all Xbox games play on it (right?)

PS2
Advantages:
Cheaper
Lots of cool games to play (Shadow of Colosus, Kingdom Hearts)
Many games are now cheap
Games still coming out for it
Be able to play PS1 games (finally see what all the hype around FFVII is all about)

Disadvantages:
Older generation console (!)
Accessories may be hard to find