Well seeing I started this thread I thought I'd let those who offered their help the outcome, (if they were interested).
I finished up with a Washburn MS1, probably the bottom in their range but for a learner quite a nice little unit. And for my first song learnt, Steve Earl's Copperhead Road, and I'm hooked!! As others have said what great fun to just hammer along to music. In my case the music I've chosen to play along with, to get the hang of this, would have never been considered for a mandolin but I've still got my "L" plates on so what they hey!
The weirdest thing I've found after persevering for a couple of hours, learning new chord patterns and finding something to play along to, was picking up the guitar to try and work out a couple of chords I needed for a song to play on mando - the neck seemed sooooooo long!
Anyway, again thanks a lot to those of you who took the time to help me out, it's really appreciated. It's rather nice to be able to say I can play a couple of instruments now, albeit pretty poorly LOL