1st time builder (Need help and tips)

That's a fantastic build for your first time! That is about the same as my current build and I've built tons of computers!

1. Most motherboards come with two SATA cables, because their is such a big market for OEM harddrives. You should be fine, but it can't hurt to double check right? As for screws, unless you are getting any used parts, or reusing some, all the screws should be there. Also, most computer screws are pretty common so dont fret if you lose one

2. That CPU cooler comes with Cooler Master brand thermal paste which is great!

3. Do NOT wear gloves. You'd think it would help, but many of the computer components are very delicate and you need the sensitive nerves on your fingers to handle and put together the components. Also, to reduce the risk of ESD which can fry your components, I suggest you use an ESD bracelet, so you don't have to worry about touching the case every 5 seconds. I use one of these to build computers for my friends and family, and has never let me down. You can get one for like 5 bucks.

4. http://www.youtube.com/watch?v=d_56kyib-Ls <--- Right there is a MEGA in depth computer guide by Newegg. I used this when I built my computer; I would suggest watching it first so that you know what you are doing, and then you can follow it again while you are building.

And don't even worry about being new! Everyone was new once! It's nice to see someone that is thankful and curious about these forums! If you have any other concerns feel free to reply and ill answer it right away! Enjoy your great build!