Cycleart is still prob the best place in the World, let alone South Africa. Have a look in the forums page and search for "cycleart" and you should get your answers. Website is www.cycleart.com (here's a paint-job they did: https://community.bikehub.co.za/topic/72465-radio-shack-trek-madone-pics-up/page__p__1043742__hl__trek__fromsearch__1#entry1043742) pretty impressive! Good luck!
If you are going for stye-man the oakleys are for you. However, the Rudy photochromics are superior and go entirely clear! Great for MTB! oh and cheaper, but they don't look quite as nice (My opinion) good luck!
Have a 305 and the bladdy thing seems to have some battery connection problems... whenever I hit a tiny bump in the road (all cape town roads) it just switches off! Incredibly annoying as the unit only records gps data (route, accent/decent) for the time since the last power-on. Any advice??
