Technician pay is full of variables. When I left the field, a good rule was 1/3 the customer pay labor rate for an experienced tech. That's when CP was about $69/hour. The superstars got a bit more and the hacks got a bit less. Now that CP rates are above $100 in most places, I'd have to say that's an unrealistic rule anymore, as I know few techs who are pulling more than $35/hour.
The bigger variables around here are the perks. Some shops are doing guarenteed 40 hours, paying for at least 40 hours every week, regardless of output. Some shops pay a different tech rate for warrenty work vs. customer pay work. Others pay more for an up-sell on an RO or pay a flat dollar amount for menu items like flushes.
As for the ASEs, get them. If you're just getting into the field, it will at least distinguish yourself from the lackeys who never aspire to anything beyond the lube rack. Your manufacturer certs. will come with time.