Datel known for their Hard-drive accessories for the Sony PSP and Nintendo DS is prepping a set of accessories for the Sony PS3.

Datel will offer the DataMAX, a adapter that allows the PS3 to access the PS2's memory cards.
On the storage side they offer a 160GB external HDD for the PS3.
The Datel PowerBoard is a black USB keyboard (photo) for the Sony PS3 featuring an extra long 10 foot chord.
These accessories from Datel are not necessarily ground breaking. You can exchange the internal HDD of the PS3 to gain more storage space and any USB keyboard will work on the PS3.

More details and a larger shot of the Datel Keyboard Gadget model available on IGN. More PS3 News.