A few years back, Lucasarts put out printings of the original Star Wars DVDs that have the remastered versions on Disc 1 and the original theatrical versions on Disc 2. Best way to do things in my opinion, but for some reason they've never rereleased new versions.
Two problems though:
(1) No bundle sets. You have to buy the DVDs as individual movies.
(2) They're out of print, so if you can't find them in a store you'll have to pay out the nose for them online. Getting them new on Amazon right now costs about $147.47, not counting shipping.
http://www.amazon.com/Star-Wars-Two-Disc-Widescreen-Theatrical/dp/B000FQJAIW/ref=sr_1_10?s=movies-tv&ie=UTF8&qid=1321207760&sr=1-10