We have had both dogs (big) and cats. You are prepared and have a strong desire to give a good home so you will be fine. If you are adopting from a shelter just go there and sit awhile and the cat will let you know they have chosen you :-). You show love and compassion in your note and you will know when it is the right choice. My cat sits by me all the time, but does not interfere with quilting, sewing, reading or whatever unless she just needs a short time to be rocked (yes, she is spoiled). Kudos to you for this adoption.