Thanks for all the info, I appreciate it.
I'll read up on all that and decide what to do.
To be honest, I prefer phpBB and I believe my users do also.
I have heard many people suggest that SMF is less likely to suffer from spam registrations than phpBB does. However is that just some sort of guess on other folks part that has perpetuated via internet rumours and gossip?
I've just installed PHPBB Admin ToolKit v2.1 which is a very handy little tool. I can now at least ban and delete spam registrations en mass which saves a lot of time.
I'm going to try a few more mods to see if they are effective in slowing down the problem and if not, I'll give SMF a try and see how that goes.
