Re: similar band names
Depends on whether there is likely to be any confusion between the groups. that's why Counting Crows and Black Crowes co-existed nicely, and were not confuse with each other, Sheryl Crow, or the old group The Crows ("Gee".)
But naming a group The Beetles will result in an immediate C&D from Apple, and not the fun organization. Not to mention that The Beetles was one of the cash-in bands when the Beatles first hit America.