Random Thought: A Question I Have...Please Help

I was just momentarily (& involuntarily) thinking about the movie Reservoir Dogs, which I watched again this past weekend. Someone please answer this: Has Tarantino ever spoken about the relationship between Vic Vega, aka "Mr. Blonde" (Michael Madsen's character in Reservoir Dogs) and Vincent Vega (John Travolta's character in Pulp Fiction)?

Does he just think "Vega" is a cool-sounding last name? Or, is there some relationship of which I should be aware?

Just curious.

UPDATE: According to Wikipedia, Vic and Vincent Vega were intended to be brothers (fictional, of course).