OK so I should have said - at £80 (+£12 for each additional bike) it's less than half the price of a Dakota 20!
To be honest - I'm not not prepared to pay a lot for GPS - it'll break or get nicked or fall off into the canal - trust me - I know what I'm like. But if I could get a workable system for less than £100 I'd be interested.
Now - what's this Basecamp you speak of? Does it come bundled or is it an extra?
It is, but it depends what you are comparing it to. The Dakota is more like a small Oregon (a lot of money) or an 800 (a lot of money) without any of the training stuff (especially compared to a H). The old etrexes are exactly that now -old. From a value for money point of view there's a lot to be said about the price changes knocking around. The prices are up in the air at the moment. I doubt the H will go much lower than £51 though, it'll simply cease to be sold. The problem with the eTrex is it seems to be a victim of its own success, it was so good (I own one) that people seem to want to buy the very old models over anything new.
Basecamp is free. However I think you need to use the OS maps (money -actually as pointed out the smaller scale maps are free).http://www.garmin.com/uk/maps/trip-planning-software/basecamp
There are various other more complicated ways of getting things working with macs. If you're talking a budget of strictly of £100 I'd be looking at either the new etrex 10 or the eTrex Legend Vista HCx.