question about upgrading to ssd
Hello. First of all, please forgive my ignorance as I've never done anything like this before, but I'm confident I can do it once I understand the process.
I bought a Crucial MX300 525 GB SSD and 16 mb ram from OWC to upgrade my computer because it's gotten really slow. I've watched several videos on how to swap out the HD for the SSD, but I'm still confused. I'm not sure exactly what tools I need beside a torx and small phillips head screwdrivers (do I need any plastic opening tools or spudgers? I do plan on getting a small ESD mat and wrist strap as well). Aside from that, what else do I need? Do I need a SATA cable, and if so, what kind? Do I need a usb to transfer data? I've seen videos recommending these and others that don't, and I'm not exactly sure why.
I've also seen a couple of videos that say I can use my optical bay to store my HD as additional memory. If I wanted to do that, how do I transfer what I need to the SSD and keep what I want on the HD? I know the SSD is better for starting the computer, but which drive is best for what kind of storage/applications? One person suggested using the HD as an external storage bay by putting it into a hard drive enclosure. I have a lot of photos, so I thought it might be a good idea to use the old HD for that instead of transferring them all onto the new SSD.
Any input will be greatly appreciated. I'm not sure if I need to keep the old HD or not. Suggestions please?
One last thing. I don't understand what TRIM is and if I need to worry about it. Right now I'm using OSX 10.9.5. I was thinking of updating my operating system to Yosemite before I do the transfer. Would it be better to update my operating system before I transfer or after?
I also need to replace my battery soon. From what I've read it can be a disaster if using a cheap battery. Apple won't sell the battery unless they also install it, which is way more expensive. Are the OWC batteries the best ones?
Thanks bunches. Sorry for the long post, but I need guidance.
Is this a good question?