You can find them on ebay pretty cheaply. For instance, look here: http://search.stores.ebay.com/Exotic-Cactus-Collection_variegated_W0QQftsZ1QQsaselZ211050390QQsatitleZvariegatedQQsofpZ0 You may be having trouble because you're spelling "variegated" wrong. ;-)

You may be right about that dawn, but it looks like Echinopsis calochlora. E. calochlora maintains a beautiful glossy, grassy green coloured epidermis like that and has nicely rounded ribs also. Unfortunately, digging around in my archives failed to produce a pic for you, and the pics I've located through google are not clear either. Flowers are like E. multiplex only white. CP

I've googled it and i think you're right! I have been worried that this plant might have some sort of spider mite because it has a web on it, but I can't see any mites at all and i've inspected it really thoroughly. Do normal spiders make webs on these?

lobivia grandiflora is an often incorrect label for a lot of cultivars of echinopsis(trichocereus) huascha....and the variation ive seen linked to that name...... I suppose ill need an echinopsis expert for this one... its always easier to ID with blooming...but when you havent seen one..... its the hard way.....