Congrads on getting your General license. I use PSK31 99% of my air time and have done so for the past 3+ years. Since you are operating on 80, 20 , and 17 meters, your antenna probably can be tuned to 40 meters (7.070) and 30 meters (10.149). There is far more PSK31 on these bands than 17 meters. I have probably worked 20 stations on 17 meter PSK31 and 3 on 12 meters. I do not operate 15 or ten meters.
Also consider joing various digital groups and clubs such as The European Phase Shift Keying Club (EPC), the 30 meter Digital Group, Digital Modes Club (DMC), and the PODXS (Pennsylvania Ohio DXS). They have numerious contests and awards plus it makes the amateur radio digital world stronger.
Keep enjoying amateur radio and e-mail me with any questions you may have.