I believe the answer you search for as it pertains to websites can be found in the off topic forum.
http://www.automotiveforums.com/vbul...?threadid=2658
This thread has a lot of websites to choose from.
I'm not sure about your other questions as you are in the UK. The states have undoubtedly less of everything you guys have(Which friggin' sucks!!). So tech questions I think you'll have to wait from someone here that is from there. But hope the sites help you.