Oh this is fun ..

[Mojocvh]

Class 2 or class 4 SD cards what is the difference and what one will fit my Canon 1000D??

Please.

Sorted. Sort of. http://www.sdcard.org/developers/tech/speed_class/

Edited by Mojocvh on Monday 26th April 21:20

[Gemm]

Here you go.

http://www.sdcard.org/developers/tech/speed_class/

[RobDickinson]

They will all 'fit'

Class 2: 16 Mbit/s (2 MB/s)
Class 4: 32 Mbit/s (4 MB/s)
Class 6: 48 Mbit/s (6 MB/s)
Class 10: 80 Mbit/s (10 MB/s)

Unless your filling the buffer frequently (lets face it machine gunning isnt the 1000D's strong point anyhow) any of them will do.