I think, in a lot of ways, it's one of the worst draws we could have hoped to get. Any premiership opposition is kinda fun, but financially, playing away at West Brom is no more rewarding than playing against Leeds or Leicester...and in terms of quality, I'm afraid i don't share RTID's optomism...really, they should easily be able to see us off. Their position in the premier league is irrelevent; the fact they're there at all means they're a million miles ahead of where we are. So we're playing a comparitively tremendous side, and there's no money in it for our troubles.
I'd expect us to go and defend the fort with the jolly old 4-5-1. It works at this level because a lot of teams aren't good enough to break us down, but West Brom are a different proposition and, if we get through, I can't see anything other than a defeat.
Magic of the cup and all that, but meh, can't see it personally.