Been where you're at. I started with the 28mm Bianchi track fork and wanted to run carbon. I was worried about the rake difference going from a 28mm rake to somewhere between 38-43mm. I pulled the trigger on the Forte from Performance which is a re-branded Kinesis fork. It has a 43mm rake and feels good, the ride and feel I got used to very quickly. I rode that for a about 2-3 months and am now waiting on the Soma fork to arrive, which has a 38mm rake.
Don't get me wrong, the cf fork feels good, but after some riding I want to go back to steel, and I like the more traditional look and smooth ride of steel. The Performance fork was about $90-100, and I picked up the Soma from Ride-this on e-bay for $104 shipped.
So, after being where you're at, if you can afford it, try it out. You will get used to the change pretty fast and then you'll know for sure. Afterall, it's not a for life decision.