i started with a 50" wb, crapsman blower and trimmer. then as i could afford it/and stuff breaking down, i bought commercial gear. Now i've got a Echo PB-750 blower, shindaiwa DH22 hedge clipper and someone gave me a free homelite trimmer (still hasn't died in 3 years). My next purchase will be shindaiwa trimmer. The commercial stuff is expensive, but is well worth it for the reliability and strength over homeowner stuff.
other than that i picked up hand tools, landscaping buckets, wheel barrows, rakes, shovels, etc as i needed them for jobs.