As always try to support i-boats if you can, they provide this great forum after all, but if you can't I hear wall-mart has some good seats according to some posts I've seen here.
dont buy cheap walmart seats i think i paid $30 for a folding with the strap that snaps it shut after a month i pulled it out and bought a $60 on clearence at cabellas so much better still use the cheap thing as a stadium seat for my nefews baseball games beats sitting on the hard benches.