I got mine from Lidl a couple of years ago, Aldi also sell them occasionally, they cost in the region of £45 (mine was £38.99 4 or 5 years ago) and come with a USB to link up to computer and monitor (plus software)the magnification goes up to x1020 They usually come into the stores in November/December - in time to buy for Christmas presents keep an eye on their websites - Lidl has different offers in different regions -(Thomasd is Irish I think which is why I put Lidl Ireland website up) !) www.aldi.co.uk www.lidl.co.uk http://www.ebay.co.uk/itm/Bresser-20x-1280x-microscope-wooden-box-accessories-/220843036057?pt=UK_BOI_Medical_Lab_Equipment_Lab_Equipment_ET&hash=item336b454d99#ht_894wt_698 there is currently one for sale on ebay 2nd hand - asking way over the odds (and a lot of people buy them up from Lidl and put them on ebay - so you have to be quick !)