Great. Well it may look like crap, but good thing it'll be mostly used with 'beer goggles' on

Anything else I should get? Should I get the motion plus right off?
If you want. It lets you play select amount of titles that you couldn't without the remote, and gives you increased accuracy when playing regular games. Isn't required though; a regular remote will work just fine.
Instead of just using it for beer/party time, try picking up a couple excellent Nintendo exclusives. There actually really good, and you'll find yourself having just as much fun with them sober as you would with any standard AAA game.
Recommendations; -The Legend of Zelda: Skyward Sword
-Super Mario Galaxy
-Super Mario Galaxy 2
-Xenoblade
-Pikmin 2
-Super Smash Bros' Brawl
A couple off the top of my head.