Thanks everyone for your replies. I'm sorry I've not replied earlier - the graphics card went on my Mac Pro so computer has been out of order for a while. No sorted and back online!
I think I'll either look at the MC-30 or possibly change my Skyport for Pocket Wizards which will give me what I need and some flash new reliable remotes for many uses. I then know that if I've got the PW I'm set up for everything. What do you guys think? I presume they can be used on Bulb mode if needed?