Personally I wouldn't put more than $200-300, perhaps mid-$$$ if your really want the name. If you don't get this name then despair not.
There are still good .com "rank" names available (just reg'ed 2 within the last few days ). All it takes is some time and research :blink:
yah I would offer $50 and wait for a reply..if he refuses your bid but is willing to negotiate..go up to $100 or so. Also ask for some stats, if the domain has any traffic or not..