I totally agree... any turn i take a little quick i'm all over the place and my passenger holds on tight to that o s**t handle. I'd get racing seats but i don't have the money to put into that. I'm not too sure about the swapping with the prelude seats or anything.
i prefer integra seats over civic seats. sometimes you can find the black cloth gsr or ls seats for $100. they are more comfortable and better feel then the civic seats.
My friend has Del Sol seats and are pretty good for side bolster support.....they are pretty deep buckets too, so you dont move as much when taking tight corners.