The three I'd suggest looking at are the Lamson Konic II, the Allen Trout II, or the Orvis Access (it's a mid-arbor). I have the first two - Konic for my 5wt and Allen for my 6wt. I have other Orvis reels and am happy with them, but haven't personally tried the Access.
ps Orvis and Allen are forum sponsors so if you like their products that's a good way to go. If you buy Orvis use this link
that will credit the forum for getting you to their site. Justin from Allen Fly Fishing is active on the site and their webpage is pretty user friendly.