Best price I could find on what is supposed to be an excellent microphone boom suspension arm. Price breakdown (Yen):
Amazon shipping: 350
Tenso fees: 580
Tenso shipping: 2400
You will require a Tenso.com account to forward parcels from Japan. When you open the site look for the "English" link (top left) to follow instructions. It's easiest to use the instructions to fill out the Amazon Japanese address and swapping from JP to EN (top left) and back on Amazon makes it easier.
If you want to complete the setup so you have a professional sounding - no hiss, pops, keyboard sounds - microphone setup suitable for game chat for under a hundred bucks:
Microphone: PylePro PDMIC58
Pop Filter: Neewer NW(B-3)
Adapter: Female XLR to 1/4" 6.32mm TRS (or 1/8" TRS) (adaptor to plug suspension boom XLR cable into computer mic port)
You can also add a USB mixing desk and/or camera to this setup to do professional sounding podcasts. Research http://www.pcgamer.com/how-to-set-up-a-streaming-studio-for-...