There are many ways to buy the myu... But the best way is to buy the original vids and cds... However, this may prove to be expensive and difficult for some myu fans. I can appreciate this. But... I will not post sites that sell copies... no matter how good they profess their copies to be... Unless I am the one doing the copying, I'm not doing free advertising. So mleh! :P
CompanyWhat they've got/Don't gotMy Rating (based on price/shipping/quickness of delivery)
CruelAngel

Subtitled Seramyu in VCD format
*Gaiden, Dark Kingdom Fukkatsu Hen
*Yume Senshi Ai Eien ni Saturn Fukkatsu Hen
*Sailor Stars Kaiteban
*Eien Densetsu The Final First Stage
*Last Dracul Jokyoku

VCDs are cool because you can play them on your dvd player or on your computer. (I personally think video looks best on the computer, but that's just me) I bought everything he had done so far, and I was really pleased!
NekoLand ProductionsCopies of Seramyu videos Fan copies of Seramyu Multimedia... Now open for business!
CD JapanYou'd have to check their site. They seem to still list items that are out of print and not in stock, so it's a bit hard to judge. They always have the latest CDs and Vids. (do a title search for sailor moon)I dealt with them once so far, when buying the 10th cd, Dark Side cd, and Last Dracul final Chapter vid. You pay the real Yen price (which varies from day to day, as the value of the yen does). A lot of people bitch about shipping, but when you compare it to animail's prices, it's not so bad, really. Plus, it's coming straight from Japan. Took less than a week to get to me! Sent priority mail with delivery confirmation.