personally, i think plasmajet is overpriced. I haven't tried it, but it seems to me that 70 or so dollars is a bit pricey.
Nitrix is a little less. I don't put much faith into NO
I've heard good things about purplewrath, but I am partial to Scivation
Xtend. There stuff is great
Finally, I haven't heard much about Drive, but reading about it...It claims everything you can ever want. "Speed, Stamina, Endurance, Lean Growht, sexual effects" etc. Sounds like an over-hype to me. If you still want to use it, try it out and let us know.
I'm not sure if you are taking any protein, but you should be. I assume you are and didn't mention it. However, if you aren't, I recommend a Whey (ON 100% Gold Standard) and a
Casein protein for nighttime as well.