These are my favorite bike-specific tools in no particular order. Like you, I always buy the best quality tools and all of these are "pro" quality. You won't need all of these but a good chain breaker, cassette puller, chain whip, cone wrenches and pedal wrench are a must for the serious home mechanic. The one tool that I use most of all wasn't cheap either and it is the PB Swiss Allen set. Even Bundhus plays second fiddle to these wrenches and Bundhus are darned good.

30 year old VAR cable cutters
Stronglight crank puller
Hozan ratcheting crank bolt remover
Campy circle-type spoke wrench
Effetto Mariposa Giustaforza torque wrench
Abby chain whip
Abby double-ended cassette puller
Hozan Pro chain breaker I ordered from Japan - (dang this one is NICE!)
Various 30 year old Campy tools (Cone wrenches, bottom bracket lockring/cup wrench, headset wrench, "peanut butter" wrench, 8mm "T: handle Allen wrench and freewheel tool)
Park PRS-10 stand
Park Pro PRS-20 Euro-style stand (I really like this one - best stand on the market if you ask me)
20 year old Unior pedal wrench
PB Swiss Allen wrench set

I have a LOT of Snap On wrenches, socket sets, ratchets, etc but those aren't bike specific. I buy the best quality tools I can afford....always, every time.