That's a pretty solid list - no complaints on it at all. For the more budget-minded I'd mention the Spyderco Manix 2 lightweight. It's got a forward choil like the Para 2, is ambidextrous for both opening and unlocking, uses decent steel, and can be found for around $65. For even less, I'd mention the Ontario Rat II which uses typical AUS 8, has a good thumb rest for control, and can be found for under $30.