@ WoW; Thanks. Also your Samus was great. Don't really know much about her but I was feeling pretty pressured during the match :)
@ Jski; I believe it is Foward grab/throw to u-air :P The second grab only works on a few characters so you do a F-smash if they can escape it.
@ Riot; Just keep practicing :P You'll be doing it like a pro... eventually. It helps to practice diagonally air dogding at the peak of a short hop then doing it at shorter parts of your jump till you're doing wavedashes.