Warrior16,
As a sophomore, you'll want to do exactly as you are doing...get in front of as many of these schools as possible. Get on the coaches radar, visit the ones that interest you the most. The coach is the gatekeeper and your sponsor through Admissions, so that relationship is key. In most cases, the NESCAC schools they will not seriously recruit you until you post ACT and SAT scores. Some NESCACs don't require the SAT/ACTs but these are still very competitive schools. The student that considers these schools must have a "hook" or something that seperates himself from others.
You have some work to do. You are sitting at a 3.6 GPA. You need to keep up that hard work and challenge yourself in the classroom and on the baseball field. In terms of the NESCAC, here is a baseline for their banding system so you understand what you are shooting for:
A Band
SAT Scores 700+ average all above 670
SAT II 710
GPA: 92+ GPA, Almost All As
Class Rank: Top 5%
Courses: 4+ APs, Honors Classes
B Band
SAT scores 650+ average, all above 620
SAT II 640
GPA: 88+ GPA, Mix of As, Bs
Class Rank: Top 15%
Courses: Few AP Courses, Honors
C Band
SAT scores 630+ average, all above 590
SAT II 600
GPA: 85+ GPA, Mix of As, Bs, occasional Cs
Class Rank: Top 20%
Courses: Honors
Baseball can be your leverage to help you get into one of these schools. Athletes can be given a slight "discount" with admissions standards. Your goal should be not to have to use that discount but rather to get in on your own. If you can do that, you take a lot of risk out of the hands of the Coach and Admissions. If you can be an A Band recruit and a high school stud you will increase your chances significantly. I hope this makes sense. Good luck with your year and your future SAT/ACT tests.
After you learn everything there is to know about NESCAC recruiting, turn your attention to other D3s with specific attention to how they recruit, where they recruit and who they recruit. As PIS noted, Virginia has its share of D3s. Also PA, and MD have an abundance of great D3s.
Good luck!