New PSP owner couple of questions.

I just bought a PSP 3001 so have a few questions:

• It didn't come with a memory card so i'm in the market for one. Does this seem like a good choice:

https://www.amazon.ca/NOSDisk-Adapter-Reader-Memory-MicroSD/dp/B00EJWVNLK/ref=sr_1_5?ie=UTF8&qid=1464551112&sr=8-5&keywords=memory+stick+duo+pro

• Sort of in line with the last question but the Firmware is 6.60 I know a update is available to 6.61 but is it worth updating the firmware? If i get the previous card i won't upgrade of course.

• Does the PS Store still work on the PSP for Canadians?

• Is the PSP in any way password protected? I see the security option on the PSP so i'm assuming the old owner had entered one but never told me what it was. Is there a way to reset this or does it not matter?

I paid $55 CAD for a silver 3001 model and a couple of games/charger. I had been looking for awhile and this was surprisingly the best deal I could find.

So far it connects to the internet, plays a UMD movie (have not tried a game yet because of no mem card), screen/body have moderate wear but nothing too bad, battery has no bulge and keeps charge, analogue stick is tight and not worn, anything I am missing?

Thanks for the help