Right now there are three sales that I know of that are going on that are worth checking out.
Until June 27 Right Stuf
is having a sale all Geneon DVD are 10 for $50, and 25 for $100 (US funds). If your in the US you also get free shipping.
Until June 17 Deep Discount Dvd
is having their semi annual 20% off sale. code: dvdtalk
Until June 17 Dvd Planet
is having a 20% off sale as well. code: 20OFFSALE
Have at it.