I only know of 1 AM2 board that has both AGP and PCI e slots, and it is the ASRock ALiveDual-eSATA2... Though I personally don't understand why anyone would still want to use an "Ancient Graphics Port" graphics card these days???
Anyway, if you still want to use an AGP graphics card that would be the motherboard to look for, though I can't see it being to long now before the AGP port dissapears into motherboard heaven along with the old ISA slot...
PCI E is definitely the way to go, if your reason for wanting a mobo with both AGP and PCI E is because you are still running an AGP graphics card in your current system and can't afford to upgrade your mobo and graphics card at the same time, then you should just hold off until you have managed to raise the money to upgrade them both, and then just go and get an ordinary AM2/AM2+ motherboard with PCI e 2.0 graphics slots and a PCI e graphics card..
I don't see the point in paying out for a motherboard that has AGP slots when AGP is dying out... I personally don't know ANYONE that still has AGP graphics in their PC....