Wiring harness kits

Wow, lots of info here. Thanks to everyone so far for throwing in their thoughts. My original post lacked quite a bit of specificity so I'll try to expound further here. Like I'm doing with my ECU for the hemi, I want something that is weather sealed and can be entirely mounted within the engine bay. Incorporated relays sounds useful and would definitely clean up packaging and wire routing. Id also like it to be compact, mainly using mini fuses and/or relays. In addition to all of that dream sheet, I want it to be affordable. I started looking at EZ wiring for how cost effective they were and I only ever read good things. Coach definitely seems higher end and maybe beyond what I really need. Ron Francis always seemed geared towards the "numbers matching" crowd and Painless seems to have mixed opinions. I only recently started looking at American Auto Wire. So far JoesEdge brought up the most interesting option with DIY, I'm reading it fervently. Keep 'em coming!