Al,
Yep there are some good places on the beach with reliable broadband. Not to mention many of the hotels have broadband in the lobby (a few even have them in the rooms).
As Avery says, "when you are in Mexico anything can happen." Of course this is true with trading at any time in any place.
I haven't been down to Cabo with Avery, but I've been down to Rocky Point and we did the same thing.
I'll be trading while down there with the same setups I always use - my own. I am my own system. I will be looking at the DTB and using the TRO Dynamic S/R to support the system of ME (remember indicators are the tool, but you are the hand that wields it). This is no different from any other day - except for the sand
What can you expect in Cabo? Amazing blue ocean, white sandy beaches, people hanging on the beach, and us hanging out and doing some trading. Risks include timeshare salesmen, sunburn, hangovers, and the normal trading hazards hehe. Seems like a fair trade.
My advice is to take it easy and expect to have fun. If you come with those expectations they will likely be fulfilled.
Edward