Deciding NOT to be a 'Jack-of-all-Trades'

If you're serious about programming as a long term career, understand that you'll likely never be hired because of your versatility, but rather your expertise. To make an analogy, the least popular character in Everquest (at least when I played) was the Bard, who was good at nearly every skill but wasn't excellent at any of them. Pick a specialty and devote your time and energy at mastering fewer technologies rather than being so-so at many.