I've really done it all, from my home brew ECA stack to Xenadrine, to Hydroxy, to
ripped fuel, to ECA by nutra sport. Right now I'm doing the home brew ECA and I like it. Sam's club asprin ($4) Equate caffeine ($3) and Vaspro Ephedrine 25mg ($8). If you take it once a day that is about $5 a month as opposed to $10 from any of the others. If you don't want a home brew, then go with the Nurtasport if you can find it. I liked it the best.
Stick with the 25/200/325, any more than that you're hurting not helping. It will give you the jitters and dry mouth (on an empty stomach), but it should do that with everyone. If it dosen't, take the weekend off and start again a couple of days later.