Well, If you want to get out on the town then you'll be looking for the Up, Head High of a Sativa or dominantly sativa hybrid. Indica strains tend to give you the couch lock and put you to sleep.

NL is pretty indica as far as i know. Not too sure about C99...but i'd look more into the sativa strains. Watch out though. Sativas tend to get pretty tall and aren't as "indoor" as a short bushy indica.

have fun.
Skeet.