i love it! i still have some usability stuff i want to do, but it's been in it's current state for about a year now, and it works great. i don't find gps too useful a lot of the time, but i just moved to a new city and it's been great!! i love having all my music in my car... that's the main reason i did it in the first place. and to update that collection i either use a USB HD, DVD, or thumb drive depending on how much i have to update.
i bought my stuff all over the place. i don't even remember where any more. just kind of shopped around and picked up all the pieces at the best prices i could find. then went to home depot for all of the hardware and stuff.
- ks