are these wheels at all usable for touring (safely)? --

mavic cxp23 rims, 32 spokes shimano 105 hubs, ritchey speedmax tires 700x30c tires.

obviously there are lots of different degrees of "touring". so i know theyre not the best for every application, but which ones *can* they be used for? -- overnight at the beach, week long up the cost, across the country w/ 75 lbs.

if i get new wheels for the more extensive treks, what should i get?