Thanks for the suggestions guys.
SmartFTP does indeed look quite simple and straight forward.
I did use to use CuteFTP a long time ago come to think of it, but I quite like the look of SmartFTP. Quite like the idea of the Firefox extension too though!
I might just give them all a try and see what I prefer! I only need something simple just now, so I'll see what I get on with best and ditch the others....
Thanks for the suggestions!