Cheap phones for other uses

[da.bus56]

I am looking to get a few phones in order to use features such as remote camera/webcam, gps tracker, and a few others. They would need to be pretty cheap in order for it to be worth it but as they wouldn't need service (it could all function off wifi) a carrier discount is out. Anyone know where I should look or what particular phone would be a good cantidate? Thanks.

Ps. I know all the features I need are available separatly in different devices but the key is they could all be switched out for one another no matter what they were being used for at the time.

 

[newboyx]

you can get some really good phones for really cheap on ebay. Search for bad esn phones

http://shop.mobileweb.ebay.com/searchresults?cmd=SKW&kw=Bad+esn+phone+&x=9&y=10

EVO 4G for $100 seems pretty cheap