Need Advice on Storage

[TWISTER]

What do you guys use to store your backups in? I'm looking for input on best type of case, sleeve material, and where to buy? Looking for something that I can add on to in the future and holds several hundered DVDs. I've looked at Best Buy but the prices seem high for what you are getting.

[Chewy]

paper sleeves, 5$ 100 walmart(temporary/probationary period)
permanent storage /cd wallets if they are keepers,
the wallets cost about 10c/disk (200/20$), with care
seem to hold up well, and offer portability.