Look at the SolidWorks tutorials inside the software or the Hands on Test Drive SeaBotix Robot tutorials in .pdf if you don't like video.
Both mechanical and electrical are great engineering degrees - I am bias to Mechanical (MSME). But I would also look into the engineering schools you are applying to. For example, UNH has a top FSAE team and Baja team! Dartmouth has Formula Hybrid and dont forget to look into biomedical engineering there too.
When you look into a college, see what CAD software they are using like Daniel Webster College.
Also, check out
www.swugn.org. There are SolidWorks user group meeting in your area. There is one at Daniel Webster College in Nashua on Sept 18. Go to one. See what engineers are desiging in NH.
You can also look to see who is certified in SolidWorks at
www.virtualtester.com/solidworks in your state. What companies want certified SolidWorks professionals?
It's never to early to talk to designers and engineers. Marie