PGSM

JBox.com
JBox sells different PGSM DVDs for $65 each. They are located in Japan, so shipping can be costly - but DVDs are lightweight. Jbox accepts all major credit cards, as well as money orders and checks. Beware - they also sell hentai (pornography), which is sold alongside other products. To find PGSM products, simply search for "Sailor Moon" or "Sailormoon" on the main page.

Catzia's Collectibles
Catzia's has an enormous selection of various PGSM toys, many of which are very difficult to find. Prices are excellent, but orders are only taken via PayPal. The site is hard to navigate, but worth it. This site even includes wearable tiaras!

GKWorld
This site offers PGSM CDs and bootleg editions of PGSM DVDs for as low as $12.95. These bootlegs have both English and Chinese subtitles, and are region-free, so they will play in any DVD player. The site accepts all major credit cards, as well as money orders and paypal.