Yep, since you dig DW, you'll likely quite enjoy IA, FOABP, The Incident, and all their related b-sides/EPs. You may as well go in order.
After that I'd progress to Stupid Dream, Lightbulb Sun and Recordings, probably in that order.
Aaaand then do Signify, proceeding backwards after that (TSMS, UTD, V34 then OTSOL & YHD last).
This is sorta the "metal centric" method of learning PT.