[quote name='soccerstud652']I have never seen an episode of either series. Will I have problems watching Angel?
I am a huge Firefly / Whedon fan...[/quote]
Without watching Buffy you mean? Ehh...probably not. The show was really shot in a way where even though you ARE missing something, it doesn't make it feel like you are...if that makes any sense. It does a good job letting you know who the characters are, even if you're not completely familiar with their backstory.
Plus, there are several new characters as well. So it doesn't feel like you're picking up on a show halfway into its run. They do a lot of stuff with flashbacks to help fill you in too...especially on Angel's history. I've known several people who didn't watch Buffy at all, but loved Angel. For $10 a season, I don't think you could go wrong.
Honestly, Buffy is worth the watch too. These shows are Whedon at his absolute best! I mean, Angel has been off the air for 4 years, and Buffy for 5, and people STILL can't get enough. There are magazines, action figures, calendars, books, etc, etc. Joss even went back to pen the "Buffy Season 8" comic book. The show died well before its time. The actors just got too big for it.