I've been following the thread, but haven't had time to post back because of school.
Tyvek seems like a good option for pants now that I think of it. Does anyone make tyvek rain pants? I remember a guy on Youtube made them for his ultralight kit.
Also, to Green Thumb, did you hike the Art Loeb back in January? My friend was on a section during that constant rain as well. We hiked the same section the week before when it wasn't raining as well.(I had to go back to school, so I couldn't do it again. He wasn't so lucky with his rain coat though. Totally soaked through Mountain Hardware and had no rain pants.
I was just going to buy the Golite Paclite coat, pants, and poncho, but they are all sold out…
I do need something stronger than a super light weight one for when I go hiking with my friends at school. There are times where it can get ruffed up and the 12oz one I have now seems to hold up. (Might looked into Luke's ultralight next winter.)
Also, do you think I should get small or medium for layering? I have a medium now and it's good enough to layer, but I always wear a small in almost everything. Probably best to get a medium again and have it baggy to get extra breathability?