Hmm..Pay has gone up a bit. Back in 2000 when I was hired for the AM sort shift it was 8.75/hr. I left after a week as it was a 40min drive for 3-4hrs of work was just not worth it. I was in College and already had benefits via my parents at the time.
Depending on where you live it can take 6-10+ years to get out of part-time purgatory and into a package car or tractor.
This is written from a UPS insiders perspective but a lot of what he talks about is relevant to any LTLer:
http://www.denverbrown.com/
Talking to the Brown guys here in Reno its about 8 years right now. Once you become a made man in the brown mafia its one of the best company jobs in trucking.