This has been a very helpful thread. I wonder if I can tag on. Here is my setup: (if you can call it that)
Tascam DR-40 (H4N equivalent)
Rode NTG-3
Boom
Mogami XLR cable
So, far the biggest suggestion is adding a mixer like the 302. For my situation should I invest in a lav setup like the G3? I am partnering with a videographer mostly doing local commericals. Should my next purchase be a small condenser, a wireless lav, or a mixer? (I am working to not be 'a guy with an h4n' but it takes time/money) Thanks for all of your professional insight and help!