Recommendation of Undelete Software or Tools

Hi all,

I need to get some reviews from you guys here. My company is keen in looking some of the undelete tools or software available from the market. Actually I’ve done some research on R-Studio, undelete.com, etc. But need some advice from you guys that which tools or any other tools/software is better to be implemented.

Requirements.
-120 users.
-Able to retrieve files deleted from network drives.
-Able to retrieve files deleted from local drives.
-Minimal installation at user end.
-Possible if able to remote restore from server end.(not a must)

Hopefully to get some useful inputs from you guys.

Thanks!