I too, am currently playing an export and am thinking of upgrading.
The only sensible step up to me seems to be a maple kit. I went to my local shops and tried a ton of different kits. Maple, Birch, Jarrah. Maple realy sounded right to me.I beleave the exports tried to emulate their sound with the old poplar exports, but you can only go so far. Did you know the Forum has exactly the same shells as the top line exports?
Anyway, in the lower priced category of maple kits, I've been looking at the all-new
Pearl ecx maple export,
Pacific cxr,
Sonor force 3005, but so far the one that has really stood out for versatility, value for money and great looks is the
Mapex pro-m.
My advice, do your own research, go to the shop and beat the drums yourself, but to really get started check out this site. It helped me out tonnes!
http://home.earthlink.net/~prof.sound/id10.html
Good luck and let us know how you went.