Its pretty tough on our cars. I did manage to hide quite a bit on the passenger side, but theres not allot to do on the drivers side.
I am going to take some pics of my car tonite, so I will be sure to take a couple of what I did with the wires that I hid (the ones I messed with are the wires that make up the massive harness that includes the HUGE connector that goes into the computer thingy right beside the fan. understand that?
I routed all these INSIDE the passenger side wheel well and had them come up beside the radiator.
Belive it or not, the only connector that I had I to lengthen was the one that plugs into the air conditioning line/port beside the radiator. It ended up looking pretty clean.
Your other alternative is to do what Dave (LAST302) did. He fabricated a couple panels that cover all the wires up. I think it looks better than hiding the wires and being left with fenderwells that are full of holes jagged metal.
Hopefully Dave will see this thread and post some pics of his 'panels'.
Good luck, and I will get some pictures posted tonite.