I wish I knew more about the hardware side of computers to help here; But I remember putting together my first computer with my uncle. You should really be the one doing it or being showed how by a friend or something because it is really fun. At least in my opinion. Also you get a little more satisfaction out of putting the whole thing together.
When I need to upgrade parts I usually do it while being a little foggy on the exact details, but I like newegg.com Me, my friends, my brother, and my brother friends use that site for upgrades or buying all things computers. I'm not sure if you already have a supplier in mind but I thought you would like to check that site out to compare prices. Regardless of your budget, it's never a bad idea to save when and where you can. Maybe you can save a little extra to get a little cooler/better case. (I love putting lights in my case and using light fans and stuff)
They have some pretty good deals and it's pretty easy to navigate the site. Some stuff you can get free shipping. When I got my stuff I didn't have any problems. Nothing was broken, nothing was missing, etc and it was all properly packaged.
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When I need to upgrade parts I usually do it while being a little foggy on the exact details, but I like newegg.com Me, my friends, my brother, and my brother friends use that site for upgrades or buying all things computers. I'm not sure if you already have a supplier in mind but I thought you would like to check that site out to compare prices. Regardless of your budget, it's never a bad idea to save when and where you can. Maybe you can save a little extra to get a little cooler/better case. (I love putting lights in my case and using light fans and stuff)
They have some pretty good deals and it's pretty easy to navigate the site. Some stuff you can get free shipping. When I got my stuff I didn't have any problems. Nothing was broken, nothing was missing, etc and it was all properly packaged.