First and foremost, I would like to express my sincere gratitude for all of the thoughtful replies to my query. I really appreciate the fact that so many of you were kind enough to take the time to write excellent, detailed replies. I read all of your comments at about 11PM last night and I found them to be very helpful. The weather was pretty damn bad today; it was pouring rain the whole morning and there was standing water in places on the track, including portions of the front straight. I was very ginger at first, as this is my first track day in the wet despite having done 8 or 9 in dry conditions. Many of the techniques mentioned here worked well. Namely, late apexing the turns was critical because any throttle application caused my car to drift wide (albeit very smoothly) out of turns. By taking a very late apex I was able to compensate for this drift and also get on the throttle very early and carry a ton of speed out of turns. Also of key importance were making very smooth inputs, as the car was easily upset since there was so little traction (as one would imagine). The only really hairy parts of the day were when I hit patches of standing water at high speed and the car got a little out of shape. All in all, it was a great day and I learned that by allowing the car to find its own limits I was able to extract a lot of grip despite the dismal conditions. Thanks again guys!