I would suggest you have a look at the Echo Carbons. However, they are 8' rods. Great casting rod with a lifetime warranty. Also, they are a local company of us in the PacNW since they are in Vancouver, WA.
I bought one because i wasnt happy with a Bass Pro shops house branded 4wt i got and i love it.
ECHO Fly Rods : Carbon
Go see Don @ River City fly shop in Beaverton to have a look. He has a big selection of Echo(and other brands) rods.