I got the 60mm and love it, also left handed! I just received my 30" x 60" mat in the mail last nite, not even up on the table yet, can't wait! My Christmas present to me! I think (hint hint) I am getting the 45mm cutter from kids for Christmas, so I will be all set. I do love their products.
Heads up, their will be a 50% off sale the two days after Christmas (so says the store manager) and most everything will be on sale. Not the long arms, sewing machine or the big table, but all mats, templates, cutters, blades, etc. Worth the wait for the discount!
http://www.martellicatalog.com/mm5/m...egory_Code=MAT