I have heard of that Cape Argus Tour, and also know of it's reputation of being extremely windy. Wind is a cruel mistress.
Once you have a carbon fiber bicycle, it's hard to go back. I have a carbon Trek Madone that is now my "beater" road bike. The TCR Advanced is super lightweight, stiff, and razor sharp handling. I also recently acquired a carbon fiber Jamis 29'er MTB. It is light years ahead of my previous aluminum Specialized Rockhopper.
We have a team "shop ride" in the morning tomorrow, then I go into work for a while, then home to work on the Rampage suspension later in the afternoon. With any luck, it will be a roller by the end of the weekend!
Steve.