Good 3.5"s...
Boston, Infinity, Polk, ...
Thats about the limit. There isnt much demand for 3.5s because of the limitations due to the small size.
I have had Polk EX series, and the Bostons in my car. I would put the Bostons against anything of the same size and some of a bigger size as far as sound and output quality.
As for rear.. I have nothing back there. No need. I have all the soundstage I need up front. The car is small enough that with proper front speakers, you wont need rear fill.
I have Infinity Kappa 5.25" components in custom kickpanels in my car, with 2 JL Audio 12" subs out back.
But if youre sticking with only the 3.5s upfront, then I would look at some decent 6x9s for the rear. You have to get midbass from somewhere.
Good=$$$, but decent speakers can be had for a smaller budget. Good mid-priced speakers can be had from Sony, Pioneer, Blaupunkt, and a few others.
A bit off-topic, but you ever take the car out to Genessee St in the summer? I have made it up to a few wednesday nite gatherings up at the old CP place. Do you know of Steve LoPiccolo? I saw his GN there last year, its pretty nuts.(10 sec car) Im definately planning on going some this year. We should get NOSJohnWE4 from syracuse and Steve and show the ricers up there how things are done