Just picked up my BF last Friday. What will I gain by upgrading the ROM from the original to the latest version? Is there a site that shows what different ROMs do for various games? If I want to upgrade, who can I get the current version from? I've used John Wart's thatpinballplace.com in the past, but he appears to be having "issues". Or I could spend about $150 for a ROM burner & eraser. What kind of learning curve is there with this idea?