I have a Felt F65 and am very happy with it so far (bought in June). I looked at Trek, Specialized, and Scott and found that the Felt offered the best components for the price.

The matte black of the Felt F75 is pretty cool too. Also, the Felt F75 offers more carbon than the S30 or 1500. I have seen a large decrease in Felt's 2006 line, so it might be a great time to pick one up.

Good luck with your decision, there are many!