salsa rock

People: 20-60 atendees, 6th graders to Juniors (ages 12-17, I know lots of people) girls and guys
Activities: Dancing (It IS a dance party after all…)
The music genres: rap/hip hop, pop, club music, alternative rock (anything with a nice beat)
Food & Drinks: Chips, salsa, candy, punch, water
Location: My garage which has surround sound speakers, a black light, and a bar (but no drinking)

What do you think? Any ideas? What other activities should we try to organize (keep in mind how “organized” 40 teenagers can be)?

Thanks so much in advance!
M
P.S. It’s a party just for the heck of it & to get to know friends & aquaintences better, not a birthday or anything.

And the 20-60 people is assuming half or a little less than half of the people will show up.
The age difference won’t be to horrible because they’ll brach off a little bit, and I get along with both groups, so I think I can make it work, but thanks for you concern.