Whatever brand you get, make sure it's a professional grade A5 clipper. All A5 clippers have interchangeable blades, and it doesn't matter what brand of clipper and blade combo you use, they will work together. Two speed clippers are nice, but pricier. Some brands off the top of my head are Oster, Andis, and Wahl. You will also need blades, possibly clip-on combs, and maintenance supplies like blade oil and lubricating/cooling spray. As a testament to good clippers lasting a long time, I fished my Oster A5 clipper out of a trash pile. It's so old that it doesn't have a zip code in the address, and it still runs.
You will also need a forced air dryer. I have an older Metro two speed model ($30 thrift store special) that does well on my GSD, but there are several other brands out there.
When shopping though websites like Pet Edge, expect to pay in the neighborhood of $200 to $400 for the clippers, and roughly $25 to $30 apiece for the blades. The dryer can cost up to $500 or more, depending on the brand. If you are looking at retail sites like Petsmart or Petco, expect to pay considerably more.
You will also need a forced air dryer. I have an older Metro two speed model ($30 thrift store special) that does well on my GSD, but there are several other brands out there.
When shopping though websites like Pet Edge, expect to pay in the neighborhood of $200 to $400 for the clippers, and roughly $25 to $30 apiece for the blades. The dryer can cost up to $500 or more, depending on the brand. If you are looking at retail sites like Petsmart or Petco, expect to pay considerably more.