Sounds scary but not serious. The scary black spider is the Black Widow, which is mostly a southeastern pest. It has red markings and obnoxious venom. This one doesn't sound like a black widow. So that makes it one of the other spiders that is scary looking as can be, but relatively harmless (I am assuming you're a U.S. resident - there are other nasty spiders in other countries beside widow and recluse, which are our problem).

Remember - a squished spider is still scary and icky. But if cleaned up properly is no longer a problem.