oh yeah, as for computer priorities:
- motherboard must have DDR3 RAM. usually not a problem, but sometimes you'll find a DDR2 one for some reason.
- motherboard preferably has some stuff that'll keep it safe from becoming obsolete - SATA III connectors (6.0 as you'll see it called a lot) are a good idea to find. USB 3.0 ain't a bad thing either but that's always a fixable attribute. most have an eSATA port outside too, and that's also a useful thing to have. shouldn't be hard, and any good case has 'em.
- case must be able to perform good ventilation. this is the most important thing about a case. size directly relates to this as well so... yeah. if it can stay cool, you've got a computer that will last. if it can't, it will die fast.
- power supply must be of 1) a good, respected brand that has reviews where it matters (tom's hardware, [h], etc - user reviews from newegg help too), 2) with a good amount of juice in it. power supply is argued as the most important part of the computer sometimes because of how overlooked it gets. personally i put it behind the motherboard since you can always adjust that one, but i also make sure i have a PSU that can take the load i want after some basic expansion plans (aka, i overkill it to be sure i'll be fine later). the amount you need all depends on what you're doing. but to that end, most bundles would have one anyway.
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The future must protect the clone's past.
"Maybe it's a tentacle, molesting the planet itself. - Aschen Brodel.