Your journey has just begun, but you've already tried some fine bourbons. Knob Creek is one of my favorites, too, and it's available for a reasonable price. Ditto for the Woodford Reserve. Wild Turkey produces some of my faves, including the excellent Rare Breed (ooh, so creamy), Kentucky Spirit and Russell's Reserve. I will have my first tasting of WT12yo this weekend, an event I have eagerly anticipated for quite some time.
Other bourbons I would recommend you try include Evan William Single Barrel (any year, but the 1990 and 1991 are outstanding), Eagle Rare 17, and any of the Van Winkle line.
If you like Tennessee whiskey, try the Dickel Special Barrel Reserve 10yo. It's hard to find, but worth seeking out. Also, watch for a new batch of Sazerac Rye to be released this month. It's one of the best whiskies of any variety or style that I have ever tasted.
You might want to check out the forum at www.straightbourbon.com.
Some very knowledgeble bourbonians regularly post messages there. You'll discover a lot of great info plus get unfiltered, straight-forward opinions.
[This message has been edited by SpeedyJohn (edited 07 September 2001).]