
Since you are on a MacBook Pro you might consider upgrading your internal SSD drive from 256 to 512. I purchased an upgrade kit from MacSales earlier this year and love it. I recommend the tool kit because it comes with a good quality aluminum case to turn your old drive into an external drive. Why did I upgrade? Once SSD drives gets above 80% capacity they start experiencing performance problems (different than crowded magnetic disks, but still an issue). And, some apps don't let you choose where to install the software so it gives you extra room for those times.
When I dove in two years ago I bought Kontakt Komplete 10, then waited for their 50% off sale and upgraded to Ultimate. I've not upgraded to 11 yet, I don't see a compelling reason to do so.
I also recommend an external 7200RPM 1TB thunderbolt drive to store all of your libraries, software, samples and projects.
To consolidate your devices I suggest an Elgato Thunderbolt interface.
If you plan on recording any live instruments consider a Thunderbolt DAW interface. I started with a 2-channel then upgraded to an 8-channel.
Hope this helps!
Paulie