Well, my first dedicated DAW was based on an AMD chip and it worked flawlessly, but...
Several publishers of DAW software (Protools and Audition being two that I know of) say that their software is optimised for Intel processors and don't recommend AMD.
I did some digging and it seems this stems from the SSE instruction set incorporated in the processors. These are the multimedia instructions (basically the evolution from the old MMX instructions you may remember) that are frequently used when writing DAW software. AMD state that they are now fully SSE2 compliant but others have found fault with the AMD implementation--and I know that, at least once in the past, AMD had to do a patch for their SSE instructions.
Whether the present recommendations of Intel that you can find on the Protools and Adobe sites are based on current processors or just a hold over from past problems I can't say. I know many people who use AMD and say they're fine--but have seen one or two problems listed on the Audition forums that might be traceable to the processor.
For that reason, I've just found it easier to stick to Intel on my last two purchases--it eliminates one more variable. I suspect your AMD processor would likely be absolutely fine--but it depends a bit on the software you'll use (and what they recommend) as well as your decision whether your liking for AMD is enough to make you take what might be a very slight risk.