do any APs support wpa with 802.11a?

i'm interested in switching to 802.11a because of interference in my condo, but i remain concerned about security. since most APs added WPA after they were released, it's often a vague reference in the changelog and no documentation or screenshots are provided in the user guides.

for example, at

"Added Security support AES/TKIP/RADIUS encryption (802.11g)" this seems to imply it only works via 802.11g.

i'm looking for a good tri-band access point which can support simultaneous 802.11g and 802.11a clients, both using wpa. any suggestions?