The best quality cases are the Vaja cases by far but they are expensive. I've been using Fortte and really like the quality. They also will mod their cases to your specs. I am using the STiL vertical pouch without a strap and love it.
Leather pda cases for your Blackberry Bold 9000,9100, Dual Design for Blackberry Bold 9000,9100, Glove Fit for Blackberry Bold 9000,9100, Lateral Pouch for Blackberry Bold 9000,9100, Open Face for Blackberry Bold 9000,9100, STiL Vertical Pouch for Bl