I know a number of folks that have the Garmin 276C and really like it:
http://www.thegpsstore.com/Garmin-GPSMAP-2...age-P205C0.aspx


A quick review of "The GPS Store" also found the Garmin Guest 2 has "Bread Crumb Trac-Back" Capability: http://www.thegpsstore.com/Garmin-Qu...PS-P786C3.aspx

I recently purchased the Garmin 478C: http://www.thegpsstore.com/Garmin-GPSMAP-4...aps-P999C2.aspx


Which ever way he goes, The GPS Store is the way to go when purchasing a GPS Unit. When visiting the website, be sure to click the "Add to Cart" button to view the actual selling price, because it often less than the price listed on the feature page for a given unit.