You may want to look at this post over at SFX:
A computer keyboard featuring letters from the Klingon alphabet has gone on sale in the UK. Priced at £43.99, it comes from Cherry Electrical Products, and is a limited edition. The compnay plans to release further keyboards based on other Trek languages in the future.
Of course, if you’re going to get a Klingon keyboard, you may need to have some Klingon fonts, as well. (As far as I’m able to tell, Microsoft doesn’t have a Klingon language pack for XP, but someone is working on a custom locale for Vista.)