course sat-navs views please.

[jon4olderview]

I am wondering if its time I splashed out on course sat nav device. I shall probably play up to 18 new courses this year, both in open events and holidays. I have been looking at the Golf Buddy Pro/tour models. And would appreciate any views you guys might have.
It seems from my on line searches, that one model is in colour the other in B & W, is that a problem? I would like a device to show the complete hole, thus displaying hidden bunkers, ditches, etc. And as an after thought, do they show the direction one should take off the green to the next tee, often very important so not to hold up following groups?

 

[shagster]

if you have an i phone, you can get golfshot for about £18. two of the lads at work have it and at first glance seems good