Cambridge for Maths, I'm using the 3U book now and the questions are really much more challenging than the ones in MIF.
Our school will be using Conquering Chemistry next year, but I can't really say anything about it (never used it :p)
I agree, as people have told me the same thing in that there is no harm in doing 3U as you can drop anytime. If you are doing 2U there is no chance to move up and thus your choices for university can be limited.
hahahahaha I remember this. XD
Back on-topic: Decided to watch Fate Stay Night before Fate/Zero, halfway through FSN now. Probably will finish in a day or two :p
No, I haven't...only know a little bit about complex and that's about it...
However I have started a little bit of study on some topics in 3U including further algebra, trigonometry and a bit of differentiation :)