I collected and gamed with a Blood Angel and Dark Angel army during the mid to late 90s. I have (I think) the second edition that came in a box set of basic Space Marines and Orks, and also have the Dark Millenium expansion. I've been wondering recently what I would need to get to bring myself up to date with the current (7th) edition/rules. If I were to get the newer models/squads etc, I would need at least the codex. However presumably that itself would mean I need the updated rule book. What about the likes of the wargear cards, warp cards, vehicle data cards etc? Would the wide range of templates (flamer, blast radius etc) still be applicable?
Also, whilst looking over some of my items I found a few old blister packs with a price on, so had a quick compare of prices. However, one of the blister packs was Brother Bethor - he no longer seems to be available. Presumably he'd be missing from a modern Codex and associated rules/points cost may no longer be valid. I'm concerned this might also apply to other models in my army - how would this be resolved properly?