I previously asked about a specific scene and found out that it was from Gundam Wing. 
I'm now considering watching that series, but I'm concerned that I'm not going to know what's going on if I jump straight into Gundam Wing without watching all of the previous series. I've been told that there are more than two dozen series, plus movies, and I don't have the time to watch everything.
Can I start straight with Gundam Wing without being lost? If not, which series should I watch first, or where can I read 'catch-up' material?