Best way to hardware AES.

[Luke Small]

I'm thinking about getting some intel or sparc system with AES hardware.
What would be the cleanest way to access the Open Cryptographic Framework
to access the hardware. I'm writing in C. I'd like to do 256 bit aes-ctr or
preferably aes-gcm and use ultrasparc T2 and above, i7 or older Xeons. I'm
looking at using openssl/evp.h, but would it be better to do some sort of
internal ssl session for what would mostly be an app with pre-shared
symmetric keys?