Well Roger, I guess that all depends on the type of compressor you have. Your gonna need at least a decent 5HP+ compressor with a good designed piping and dryer/dessicant system.
Keep in mind, this is how I went, by gathering information from Donny on here, other internet resources, asking lots of questions, and actually buying a book as well. If anyone else here has experience to share or ideas, please do so.
Ideal would probably be 10HP+ Two Stage...Big stuff! But most of us average hobbyist can't afford or don't want to invest for something that's not supporting a full time gig.
The problem you run into with smaller compressors is yeah, they may be able to keep up with CFM requirments to operate the blaster, but they will be running non stop trying to keep up. The constant air getting compressed and heat from the motor creates condensation in your tank and lines and so on.....You have to keep that moisture out! It's bad for your lines, tools and it clog's up the media or creates horrible paint jobs for you.
One way I approached that was 1st designing an adequate piping system that has a very small angled slope in the long stretch from one end of my garage to the other (I'd have to go back and look up approx degrees). Coming down from that, I have a couple deadleg traps with drains. Follow it down it splits into two manifolds, one for air tools (lubricated air) and one for blasting/paint (Dry Air). They both have piggyback air filters, but my dry air side has a De Vilbiss dessicant filter (removers water/moisture) as well. Lubricated side has a cheaper throw away dessicant filter and a in-line Lubricating filter
I bought a 100lb pressurized Media Blaster ($179)from Eastwood for the system and a small (3' X 3') blast cabinet($150 at Fleet farm). I also installed those $5 plastic toss away dessicant filters on those as well..........So far, no issues! I found on very humid days and demanding air usage, it helped to purge the tank via drain on bottom while running and purge the air/water filters
also. I wasn't seeing moisture coming out but was spotting condensation in the sight glass of the filters..Seemed to help out if I purged every now and then.
I've seen guys on here and the dodge coronet registry do stuff like, from their compressor, run small diameter copper tubing in a coil in a 5 gallon bucket filled with cool water to cut down condensation. Or guys running straight out a spot blast gun with a regulator from the compressor and a throw away dessicant filter. Some had great luck, some gave up. I think if you do want to upgrade to being able to blast yourself, do your research, ask plenty of questions and then go from there for picking out a plan for your air system. After that figure out the caliber of blaster you can efficently run.