I use a similar one...this one (You are not allowed to view links.
Register or
Login) to be exact. I really like it. decent sound. It is a little over powered as it reaches about a dozen houses away, but is no big deal for me as I am in a rural area with plenty of room on the FM spectrum so I am not overlapping any commercial stations. You can find this one for a little under $40. I think I paid around $36. If it is an issue, I am pretty sure you can add an attenuator to cut down the power.
HIH,
-Keith