I have to second phenadrine. I'm not a fan of geranamine alone, but phenadrine REALLY works for me.
I've never had such intense motivation to get things done than when I take phenadrine. I don't have focus issues (I don't have a lick of ADD) but I have problems getting motivated to actually do the work. For reference, adderall honestly f*cks me up bad. I get too much energy for the first 1-2 hours to the point where I can't focus. After that wears off, I'm good for 6-8 hours like everyone else, but it doesn't allow me to focus anymore than I normally can. Like I said, I don't have a focus issue, I have a motivation issue.
I've found that taking a phenadrine in the morning with my breakfast and then another around 3pm will keep me motivated and energetic till 11pm-1am. I take them with food, because without food the stimulants hit me too fast (I get jacked up and then crash)...taking it with food smooths out the stimulant effects and mitigates some of the crash for me.
Then again, I've been doing the phenadrine thing for about a week now and I haven't seen any diminishing of results (I do 3 days with phenadrine and 1 day off, where I take an old venom HD and drink lots of green tea). Also, I dose like that because I'm consistently studying from 9/10am till 11-12pm for med school finals. If you don't need that level of intensity, maybe one phenadrine with a meal will be enough?
I've also heard that the aneurin-DB in LeanFX will have great complimentary effects with phenadrine. I have yet to try this combination, but will add to this thread if I do.
(For the record, coffee actually makes me tired mentally and does NOT work as a good focus/motivation stimulant for myself. Straight caffeine will work, and the methylxanthine ratios in tea are also great for me. It must be something about the ratios in coffee that mess me up)