Checkout the reviews on www.pdabuyersguide.com.

You want either the IPAQ 3950/3955 or IPAQ 5450/5455. They are similar, but the 5450 has WiFi, a fingerprint scanner and hot-swappable battery. Otherwise they are the same.

MOdels inding in '0' are sold through business channels. Models ending in '5' are sold through consumer cahnnels. Otherwise they are the same. You can get a 3970 on the Internet for around $200 and a 5450 for around $400. If you are going to use it just as a remote for your entertainment system, the less expensive model will work just fine.