You'll want to study for the new 220-1101 & 220-1102 exams now - the old ones retire pretty soon
CompTIA usually add or remove a handful of things from the blueprint to keep the certification current and relevant to what's happening now - taking the latest one is therefore not just the best choice exam study wise, but also the best way to get the most relevant content.
If you're new, watch the full length course rather than the accelerated version - the accelerated version might however be a great way to revise before taking the exam!
The A+ course will be everything you need for that exam, but don't forget to look around the course library for extra material for any areas where you'd like to learn more or see things used in a bit more context - for just one example, Wes has also done a great "how to build a PC" series, or there's also one on basic system maintenance which you can watch to see some of the hardware aspects of the course in action
A+ is such a good certification because it's an introduction to loads of different areas - see what you most enjoy and then you can think about a higher certification in that specific area!