Slippery slope here, vader1979. In general, LED'ing typically isn't a "only a couple areas" type of thing. After doing a few, you'll likely want to finish the job. It's not a bad thing, though. LEDs, when tastefully done look great, particularly in Sterns.
I really like the Cointaker 2-LED cool white and warm white for GI. I rarely use colors for GI. Warm and cool whites will complement the existing artwork without saturating it. Warms are good for yellows, oranges, and reds. Cools are good for whites, blues, and greens. The 2-LEDs do a decent job of spreading the light without being overpowering. Frosted LEDs do better for spreading light, but are a little weaker.
Order a handful of 2-LEDs and frosted from Cointaker, then take it from there. Have fun and good luck!
EDIT: I don't have a LOTR, but here's a recent Iron Man that I did. I did some blue and red in the GI where appropriate, but it's mostly whites.
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