If you like the songs you mentioned, you should start with Lights. It has Stop!, Many Classic Moments, genesis of next and other great stuff and is a lot easier to get into than LEVEL 4, which would be my next recommendation. If you fancy a less trance-y CD, go for globe 2. Personally, I also think FACES PLACES has many phenomenally good songs, but Keiko's voice... Well, let's just say thank god she gets better. Also, Lights2 and outernet have some gems, but half of their content sucks.
TL;DR: Start with Lights. Go for LEVEL 4 and globe2 next.
