Ha, interesting problem. You suspect a 135i will get you more trouble, but you get trouble because you appreciate performance. A 128i will definitely meet your needs, but only if you do not test drive a 135i. If you do that you're doomed for trouble, lots of trouble.
135i, SGM, Coral, Sport Package, Auto, Premium Hifi, USB/ipod, Forgestar F14s, PPK Stage II