ebay’s deal of the day is a portable usb hd,750gb for £35, would this work as an add on drive to a pc for music/itunes, or would an internal one be better?

It will work fine.

cool ta…would there be any preferred option for my Level 42 collection?

The /dev/null drive perhaps? 🙂

would there be any preferred option for my Level 42 collection?

If you are using Windows 7 then:

Only time you’ll find it slower than an internal drive is if you’re transferring large amounts of data to/from it – otherwise it’ll be fine for music storage and playback.

Have you considered getting two so you can have one as a back up – I’d be worried about having all of my music just in one place?

xp…but I am kidding re the Level.

It’s more about space to in lossless for hifi reasons, I only want to back up photos.

thinking about it I’d be best getting an internal drive and use the existing one as a back us. I want to try ubuntu (to try and get a bit more life out of aging pc) so it’d be a good time to do all of it I guess.

It will have a normal HDD in it anyway, so you could just take that out & mount internally if its slow, (which it wont be).