Cats are fast, I hope you don't expect to do to much offshore in a laser but a cat can do more any day.

Cats do wonderfully on ICW's, my friend and I just sailed my 5.2 along the texas coast and camped at night for four days.

When the wind dies....don't be out, cats move in light wind very fast because they are light and have alot of sail so it should be okay.

I carry a radio sometimes but you don't need all that to keep you interested. A gps is okay, just go with handheld!

As for carrying gear, we had everything that 2 guys need to survive for 4 days on my Nacra 5.2 and never had a problem.

I beach launch and it is easy

Single hand boats:
Anything from the HObie line up to 18 will work but it all depends on how manly you are.
Nacra:5.0 great boat for shallow water areas, 5.2's are older but are fast and fun solo.

The options never end, just read alot on here.