Oh yes, anti-virus. I had forgotten about that!
I've not heard of Vera but I'll have a search and get it installed.
I'm really not keen to use FireFox because I know that it's awful with memory. Perhaps the new version is slightly better, but I'm still not really willing to give it a try.
Wordpad will do nicely, I had forgotten about it!
I'm using iTunes as my media player now and it's fine - takes a few seconds to maximise and minimise properly but once it's done it's nice and responsive.
Hopefully I'll be able to whack a couple of GB of memory in the machine at some point - I'm sure it will be at least twice as responsive.

Thanks for your help and suggestions guys.