This has been gone over a million times I think but I can tell you geo tracker seats are almost a bolt in for the backs. Otherwise you're going to have to do some work for the fronts but most skinny (honda or the likes) seats will fit with some work.
My 2 scents is..... find seats that feel good to you and fit your body and use those. Almost all seats can be adapted to fit with a little cutting, bending and welding. Never met a honda seat I didn't like though... they all feel good. I presently have celica, scion, and 4 runner seats in my 40's.
From there look for a good all weather cover. Wet Okoles feel good but tend to fade in the sun and they will tear. I just had a set sewn for my celica seats by Great Covers (gtcovers.com) in colorado. I got a pvc backed nylon material in the "fall camo" color and they look and feel great.... Same material as Specters "tuff duck" covers only with a layer of foam added in.