halfshafts..C/V joint ?'s.., help..hehe Options

[presure2]

hey all...drivers side c/v's are GONE....really bad clicking, now turning into crunching when turning,..and every once in a while i'm getting this really wierd sensation like the c/v's are slipping apart or somthing..the best way i can describe it is like this....remember the movie leathal weapon w/ mel gibson? well if so you know when he pops his shoulder in and out of place? well thats how my wheel feels for a second, then it goes away..its as if somthing in there is poping in & out of place...i know, sounds bad, right? well the wierd part is that it only does that when its cold for like the first 10 min of driving...then it dont come back till the car sits for more than a couple hrs..
ok so on to the ??'s..
is it hard to do the drivers side axel/halfshaft, whatever the hell it is that i need to replace?
(i consider myself a beginner at car repair..i can follow directions well, but im not about to go do major surgury on my car by myself..hehe)
any helpful hints or suggestions are welcome!! (if that means paying to have it done, thats ok...i'd rather pay someone than hurt it more, ya know?)
will i need the BGB to get it done?
thanks all!

manny