You need to make a test drive day...go test drive as many cars as you can in a day (or weekend) and find what you like. You like your wife's car, but who says the Si won't be a completely different animal that may not fit what you want. Try an EVO, Si, Sti, GTO, etc... Get in as many different cars as you can and then compare. Its the only way you're going to get something you really will enjoy for a long time.
I've found that when making these kind of decisions that taking your time and truly evaluating what you want and need will make you the happiest. This is especially relevant when buying a car.
If you can sell your SRT4 and still be ok when you move, why don't you find something out there. You may even want a different car entirely based on the area you're going to live in. Who knows?