What do you keep on your console of choice's hard drive, memory card etc?
Also, any removable media you'd recommend to others?

I'm at work, so I'll have to list the contents of my PS3 later, but my PSP's 32gb memory stick currently holds:
- 18 PSP titles
- 4 minis
- 17 PlayStation titles
- 1 NEOGEO title
- 9 full length movies
- 32 themes
- 23 music tracks
- 9 wallpapers.

My memory stick is a cheaper Sandisk model which had the sole advantage of being quite cheap for 32gb.