Ok, from what i've been reading and what I have learned and what I want to do.. Go with the Aviner Motor. it's a nice Ballbearing T-25 Turbo Motor. It's newer then the other motors that you can swap with. So I hope that help but Search the Forums and you will learn more from people that Have done swap or gotten swaps done to their cars.
Check out the
www.SR20DEForum.com if you already not on it..
Good luck and If you do go turbo share the pictures.
If you worry about spending a couple of hundred dollars or certain things then a Trubo project isn't for you.
Good luck