Re: First time on the water today, I could use some advice!
Since people are generally fearful of that which they do not understand, instead of buying a motor, perhaps it would be more fun and effective for the OP and his wife to learn to sail together. My wife did not know how to sail when we met in 1978. We bought a GP-14 and I taught her to sail. Today, she a highly competent sailor (if non-technical) that I trust with my life. She is the only one who I trust to belay me when I go aloft. When one is an active participant instead of a bystander, they tend to enjoy it more. Just a suggestion based on experience.
After her first overnight race 2 years ago, her quote was "That was a blast!" She's the one in pink on the rail in the photo above.
Sabre 38 "Victoria"