The unit I would recommend is the Ryobi 18V ONE+ 4.0Ah Hammer Drill Kit. It's perfect for D.I.Y. jobs around the house, has a hammer function for drilling bricks, comes with a decent-sized 4.0Ah battery and is a great price.
For drill bits, I would recommend getting a couple of kits to cover the majority of what you need. The two kits would be the RYOBI 56 Piece Impact Drilling And Driving Set and a Sutton Tools 6 Piece Masonry Drill Bit Set. If you need larger sized drill bits for a project I would advise buying those individually. The same goes for tiles, if you need a specific size I would purchase the individual drill bit you need. The drill bits included in these kits are of good quality and should last a long time without the need for sharpening.
The Craftright range of drill bits is very inexpensive and could almost be deemed throw away at that price point. They will do the job you need them to but will not last anywhere near as long as the kits mentioned above. It would be my advice to purchase something of good quality that will be used for years to come.
You might be interested in reading through some of these previous discussions: