I have owned a pair of Alt-Berg Hogg Lite boots for about 6 months and they are a great boot. Dual purpose boots will always be a compromise, as you get something that is good two or more things, rather than being fantastic at one. I do a lot of hill walking and biking in them - I reckon the Hogg boots are ideal!
My right boot developed a fault behind the heel (the leather here is thin flexible, so prone to wear) - so I sent the boots back to the factory. I got a phone call from them saying that they had now redesigned the boot and would replace/repair mine at no extra charge.
I bought the Lite boots with a view of using them in Africa, and I think they are ideal (although I've not used them there yet). There are plenty of photographs on their website at http://www.altberg.co.uk/
I guess the only problem is that they will let in the water in extreme conditions (as they are not knee high and 100% waterproof)
My brother has used their Peacemaker boots in the desert/artic and probably the jungle (being a bit of an action man) and he rates them.
I'd say buy the Hogg Lites - I've used them in the UK and they can easily cope with the rain here and they are super comfy.
Alt-Berg also do repairs and put on new soles - so you can keep your boots for years.
Hope this helps.
(I'm quackers about bikes)
(I\'m quackers about bikes)