Yes, and yes. The best ones are type a, from 9spuzzles.com and cube4you.com (exactly the same cubes). If you're in the USA and only want one or two, they'll probably be cheaper from edsthinkshop.com because of lower shipping.
I wouldn't necessarily say they are better all the time. Some Wal-Mart cubes can be just as good if they are worked in right, it just depends. I was reading that 1/30 or so approx. Walmart cubes are very good. However, with no work, DIY's are good
Originally posted by xu234@Apr 28 2007, 04:55 AM i was looking at diagrmas of diy cubes and it looks liek you have to manually put in screws and stuff? is that hard to do?