Only my red DS Lite, using Cyclo DS Evolution on firmware 1.56 Beta 3, with 3 Micro SD cards. One 8GB card serving as my main, half of which is games, the other half movies and music, my 2GB reserve card, with some games that I don't play as often but like to keep around (mostly stuff like Mario Party for when I visit my nephews) amd my 1GB emergency card, containing key data files, a backup of my saves, a few token games and two films.
There is a PSP 1000 in the house, but it's actually my dad's. No matter how many times I point out the advantages of installing custom firmware (especially since nobody uses the damn thing at the moment because we're too poor to buy games for it) he just moans for five minutes then ignores me.