<< Episode 1 is coming out on Oct 16, dunno about the original trilogy though. >>
The original trilogy won't come out 'til you know where freezes over. Mr. Lucas wants to sit on them until the "next best thing" - High Definition DVDs? who knows? - comes out. AFAIK, no release date has been set.
As for Gowaldos' other question, I agree with Jaiknight; it all depends on what you want them for and what you like. I got my DVD player so that I could watch anime. Better picture and sound than VHS, they don't wear out,and DVDs are cheaper than VHS in the long run. Besides, you can get dubs and subs on the same disc, rather than having to either pick one or buy two tapes. I collect regular movies, too - T2, Diehard, Lethal Weapon, and Star Trek are just a few of the ones I plan to get - but the majority of my collection is and probably will continue to be anime.
Nate