I was a firm believer in making your own ECA stack simply because the products were too damn exspensive. However, I found that Wal-Mart sells a generic version of Xenadrine called Xenalean... it sells for a whopping 9.99 and works awesome. Same ingredients as the Xenadrine in every way. Start dosaged rather low and work up... The problem with ECA is that your body gets pretty immune to the effects and larger dosages are required like just about all other products.
And oh yea... I found out the hard way, there is also a Libido effect involved with the Ephedrine... Almost a "deca dick" equivelant.
Good luck and Ill bump for more input.