Hi tweeny, yes your cat will get used to the great outdoors and will love it. I had two housecats at one time as we lived in a flat, and when we got a garden, they soon got used to the idea. Stay with her for a bit for the early days, make sure she has a cosy place to come back to indoors - easy to tempt her back in with her dinner! Make sure she's up to date with her jabs as she will meet other cats, also her flea and worm treatment as others have said. She will need a place to wee - she'll probably poo in someone else's garden if I know cats - we put a bit of litter in a suitable place and kept changing it until ours got the hang of performing outside. You say she is microchipped so she really doesn't need a collar - I had a similar experience to the others, my Rover nearly hung himself on his collar when he got it caught on a window latch, and that was supposed to easy-release. None of my three have collars now, we do get the odd bird brought in (and loads of mice at the moment) but I would rather they did the natural thing and caught the odd bird than they hung themselves. My biggest problem was persuading one cat to use the cat door at all, rather than stand at the door maiowing - but we got there in the end. Good luck to you all - let us know how kitty gets on - she will love sitting out in the sunshine, batting at the odd butterflies!