To be honest, the best place to start is Amazon or ebay and pick up the 2006 DVD release - the one with the "original theatrical" versions of the original 3 films as the Bonus discs. The NTSC US is the one I would go for and not a PAL version
Whilst these are far from perfect, that release is the best one available as a retail release and people around here are doing wonders improving the films, getting quality that you would not think possible. The acronym for this release is GOUT.
Beyond that, the newest 10 posts or most recently updated topocs usually contain the other current projects but is is worth doing your homework by going back a year or two.
Finally, welcome to the forum.........