Combo. Get Cialis and Viagra--they're at opposite ends of the spectrum--but they actually work well together too. Cialis lasts a coupla days but is more steady, all the time. Viagra only lasts 8 hours but is more of a violent, "I'm gonna fuck the living shit out of your tight wet pussy right now you sexy little slut" type of hardon. Viagra's good if you need a quick solid boost.
Damn. I'm going to go take 'em both right now. Oooh my gf's gonna get it...