Go to any child's science store, etc. and pick up a kid's microscope that is capable of 10x magnification. It will usually come in a kit with the scope, a few slides of things to teach you and some extra slides & covers for less than $100. This will do all you need in regards to looking at sperm.
Thank you so much for the reply. I have looked at a few scopes but didn't want to waste money on the wrong thing. I appreciate your advice and will run out now to get one.
I bought one on ebay for about $75. I was told to go with something that has 3 different magnifications, a fine and a course focus and a light source. Basically the same microscope you used in high school. I use it just to verify live sperm that appears to move correctly. Any advanced concerns and I'm off to my repro vet.