yea, i'd recomend ephedrine, but if you like the otc fatburners, those will work fine as well. just make sure you are healthy before beginning. some guys have pre hypertension ranges for their bp before cycle, then they get on and have hypertension levels, so they wouldn't be able to use any added stims on cycle.
but if your levels are in the normal and healthy range, you should be fine, esp if you are using your cycle assist as recomended.
I like to use ephedra + pre w/o on cycle. not every day, just cardio, legs, and abs, you know, those more intense days.