My trusty old bargain basement power drill/driver is on its last legs. It's only for home use, flat pack, shelving, lots of drilling into wood and some masonry drilling. Can't decide if I should get a small power driver, and separate drill. I sometimes struggle to get screws tight enough so was wondering if a power drill and separate impact driver might be best. I have two batteries with my old drill which has been great. I like the look of ryobi and particularly the shared batteries and different sized batteries (great for weight). Also I could add a jigsaw and circular saw in a year or two and still use the same batteries. PS last time I used an impact driver it was something you hit with a hammer. Prime concerns other than price, are light-weight and easy to handle for small hands. i don't have masses of strength or stamina. Oh, also what are the better drill and driver bits. Thanks for any suggestions and advice.