Wow! I'm the first one to vote for 'no way'!!!
I really don't think that a relationship between Syd and Will would work out. Will just perfectly fits the 'friend' category, no matter how much he wants her. She just don't reciprocate the feelings, and I think if they did have a relationship, it would just be awkward.
On the Syd/Vaughn relationship, I'm all for it - eventually. I know that things are really accelerating between them right now, but I would rather wait and continue the UST than have them get together mid-season of year two. I really hope that eventually they do get together though!!!