Hi there, I just recently cracked the bottle with my 7 month old bottle refuser, and now she happily takes 2 bottles a day from it. I took a tommee tippee bottle, cut a massive hole in the teat (so that the liquid dripped out and she would realise liquid was in it), and tried her first with water (she is a good water drinker). She drank water from the bottle first time I did this.
I then used milk instead and she took it first time, although she made quite a mess spilling it everywhere. Then I switched back to a fast flow teat (size 3) and she drinks far more efficiently.
I also just discovered a sippy cup that is a cross between a bottle and cup - it's a tommee tippee 'tip it up', and has a spout, but the spout is made out of teat material, so it's soft, but easy to suck from. DD can drink water really quickly out of this cup (compared to the normal simple tommee tippee sippy cup we were using before), and I have given her milk out of this cup too. Also a success.
I completely understand the feeling trapped thing, as I breast fed exclusively every 2 hours till about 5.5 months when I started weaning, and was really fed up of not being to have any time for myself without having to take DD with me. Think DH was pretty annoyed at not being able to do things alone with her too without always having to account for the 2 hour feeding thing.
You should definitely bear in mind that even if they never take a bottle, the frequency of feeds will probably drop when they start eating solids, and you'll be able to have more time away.
Good luck everyone!