Well there's this excellent thread over on sleepywood for I/L mages. It has three builds, depending on where you'd like to train.
Summary:
Squids:
Ice strike -> booster -> Amp -> compo -> seal -> TS / slow (your choice)
Vikings:
Ice strike -> booster -> TS -> Amp -> seal -> compo
Gobies:
Ice strike -> booster -> Amp -> seal -> compo -> TS / slow (your choice)
Precise details can be found here. (It's color-coded and everything!).
Personally I'm in the middle of the squids build, and it's working out well for me. I'd reccommend the squids or gobies build, but I know there are TS fanatics out there who looooves the vikings.