Being also a fan of Don Ross and Andy Mckee, I go to their websites to download their tab (not free). They are not easy, and well gives a gratifying challenge. It's just the alternative tunings that is kinda hassle and breaks a few strings.
Tommy Emmanuel's songs are the ones I play most because they are mostly standard tuning or occassionally Drop D and G6 Tunings, and nothing else.
I'm so looking forward to his tab book for "Little by Little" album. It will be gold. Yes some of the song tabs can be found online, but sometimes prefer the 'real deal'.