Hiya Rob, welcome to the board and back to the Amiga.
I've sent you a PM ;-)
But regarding the topic, it depends what you want to do!
The Amiga 500 has some options available now such as the Gotek which enables you to get away from failing floppies and run software from USB stick, when I have my Amiga 500 Plus setup I use an Amiga Video to SCART cable
Amigakit have just released a nice optical mouse which is Amiga 500 compatible
http://amigakit.leamancomputing.com/...oducts_id=1259
Kind regards,
Spud.