Good for you! I think you'll love non-AI Negril

I can't say whether or not any places offer breakfast and drinks included, but many places include breakfast. A couple examples I've personally stayed at are Country Country and Sandy Haven. I'm sure there are more breakfast-inclusive places on the beach, but I can definitely recommend those two. Not sure what your budget is, but Travellers may offer breakfast too? And maybe Coco la Palm?

Included breakfast isn't a must-have for us as there are lots of places to walk to for food, but it is convenient We always get a room with a fridge and stock it with Red Stripe, juice and Ting to mix with rum. We still have a few drinks a day at the hotel bar, but save $$ by mixing our own. And having it on-hand for sitting out on the veranda is a must! It's also nice to have a fridge to store fruit and leftovers in.

There are many options to walk to for meals and drinks from just about any location on 7 mile, excluding Bloody Bay (from what I hear). For dinner, if you want to venture further than walking distance, some places off free pickup at your hotel. Just tip the driver. And then they arrange for your ride home, which you normally pay for. Some places offer roundtrip transportation. If you're going further than 2-3 properties away and it's dark out, it's a good idea to either walk on the sidewalk across the street or get a cab.

Here's a great map that is very helpful - http://travelsinjamaica.com/negril-map-of-everything