Finished Business, no that was Elk lake. I fished Cameron once when I was there for a week and had very little luck. That being said, at the time i was newly re-addicted to fishing so I wasn't using the techniques and tackle that I should have been. The one fish of substance shall we say was just a small 12" brown, but it was so beautiful that it remains a lasting memory. Wish I had a picture, it was golden brown all over with a single lateral line of spots that were bright orange with brilliant blue rims. The first brown trout I had ever seen in person, and I've never seen any like it since. It was caught by a local in my boat with his father's old gang troll and a mepps #2 black fury spinner, no bait. Prawnhunter's tips are all good and probably better than what I could tell you. But here are a few things I found from talking to locals and in my own experience since then:
1. Definitely bring the downriggers, this time of year they will be deep I suspect. Like 40' or more. Cameron lake is very deep and I've heard of people trolling at 60-70.' Early in the morning and late in the evening they may come up shallower.
2. Large trout like to eat smaller trout, there are supposedly kokanees in that lake and definitely lots of small rainbows. the trophy browns eat them.
A certain fly shop owner told me that they have been caught with really large kokanees sticking out their mouths. So you might want to try larger silver spoons and rainbow trout pattern rapalas up to size 9 or even larger. Definitely bring, but don't depend on flashers/dodgers or gang troll type attractors. Big trout are spooky so consider using really light line and always run your gear 100' or more behind the boat.
3. Check anglersatlas for a depth map of the lake and bring a good sounder. The opposite end of the lake from the campground, where the river enters the lake, there are shoals of gravel which fall sharply down. This area and wherever rockslides had fallen into the water was where I focused much of my time and caught a few small rainbows. I am still confident that those are good spots.
4. there are lots of sculpin in that lake, maybe try a sculpin or crawfish pattern lure like Prawnhunter said and drag it near the bottom or cast and jig.
5. I could go on forever it seems like, but this has helped me organize my thoughts about that lake since I was there. Good luck and be sure to report back with pictures!
P.S. Oh yeah and just to get you really excited, there have been reports of brown trout over 30 lbs coming from that lake. One was caught by a local lady rowing her boat around dragging a bumblebee fly. (probably more of a summer fly, wouldn't recommend you use it in january) Tight lines!