First of all, although Cruthfield has THE best customer service I have ever had to deal with (and they give you the correct brackets, harnesses, etc.) they are by no means a place where you can get a "good" deal (pricewise). For example, I got the same Infinity component speakers you want (Reference 6000 CS) for $115 which included shipping (they were brand new in the box) from Sounddomain.com (they pricematched). I was very pleased with them - in fact, one of the speakers had a slight tear in the woofer that I didn't notice till I had them installed. I called them, sent them back, and they quickly sent me a new one - overall a great experience. What I am getting at is if you are looking to save a few bucks you can do better than Cruthfield. However, if you want the piece of mind knowing that they will be there to answer questions, help you out, give you all the right parts, stand behind their products, etc. go with Cruthfield.

Secondly, I would suggest doing the work yourself. Everyone has to start somewhere, might as well start now. What you are trying to do is not that hard, it just takes some planning and reading to get it done right the first time. I am by no means an expert, but I was able to put in a HU, components, two amps, etc. and it all sounds and looks good. If you want some help, or have some questions, give me a PM or just ask on the board (or other boards). There is a lot of information out there, you just have to find it. By the way, if you put those Infinity's in the front, you are going to need to make a spacer out of MDF to clear the window (not hard). Good luck man!