Time for a newer TOMTOM

Ok, so the screen on my tomtom go live 740 has now died. (battery replaced - sound but no screen ) Time for a newer one..
Question is which one to choose.
I need one that I can use with Navitotal ;-)
One that has an SD card slot so I can add more than one map.
Any recommendations before I trawl EBay ?

Thanks everyone.

Maybe it just needs a new digitizer screen?

Any Go x40 or x50 would be good as they are still updateable and all have SD card slots

I've just bought a 'mint' 930 with all accessories on eBay for £40 - that works fine too after a navcore change.