Just get the Garmin Etrex 20 for about $200 regular price and $166 right now at Walmart.com.  You can get free maps at GPSFileDepot.  I have the Oregon 450 and love it but it's $130 more than the Etrex 20.

I take that back, buy the Oregon 450T with birdseye imagery for $269 at  http://www.thegpsstore.com/Garmin-Oregon-450T-Touch-Screen-Handheld-GPS-P2255.aspx?gclid=CJSvro_ghLgCFdFDMgod_SsA8g