I agree jaredmus about Nitrix and Axis HT. N.O.-Xplode is hit or miss w/ most ppl. Works great for me, but i prefer SuperPump250. BSN makes some good products and some bad ones.
I would recommend that you get White Flood and/or White Blood, Green MAGnatude or Green Bulge from Controlled Labs. Seems to getting a lot of good reports.
O and your 19...stay away from test boosters