Neil :
depending on the printer a used printer can be a good deal it is how I started. I would say before you jump in read over the threads on the 2.0 here. And watch some video reviews on you tube. Davinci are very attractive on the price point but they do have there quirks. They can be a usable printer, But they are proprietary. and have a rep for poor customer support and you need to use there filament unless you mod them. IMHO they are a complicated way to start this hobby.
IMHO one to look at is this one
https://printedsolid.com/collections/3d … r-us-stock
Notice this price ($420)includes shipping.
filament can be found for $ 15 a roll at Micro center.
http://www.microcenter.com/category/429 … and-Resins
tin
Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura