The Garmin GPSMAP 60 is kind of the gold standard. You can get various models:
60 - the original
60C - color
60CS - color with extra sensitive antenna
60CSX - color, sensitive antenna, and expandable memory
If it is in your budget, get the 60CSX. You can find them used in good condition on ebay for around $200.
Last edited by clandr1; 10/06/15 08:30 PM.