Being second hand and having lots of good software installed and no recovery dvd's for the Applications I decided it would be good to image / Clone the MAC hardisk to a fairly new larger disk. I also wanted to make sure if I messed up the installation I could just pop teh old disk in.
The windows software I normally use doesn't support OSX. I had a hunt on the web and found lowendmac. who had a great article on their site. I used shirt-pocket.com SuperDuper software to make an image.
I connected my new disk via a usb Caddy, I used the MAC Disk Utility to erase (format) the new disk.
I installed SuperDuper and followed the instruction at lowendmac. I opened up the MAC and popped the replcement disk in and it booted fine.
The previous owner had not installed any anti virus or updates, Sophos had a free MAC antivirus which was soon installed and a 1 trojan found.
The office for MAC 2004 needed some updates and convertor to be installed so it can open .docx files.