What's a really good computer case that's not over 100$+ and is easily capable of putting bigger size Video cards and motherboards etc?
Check out bitfenix. The coolermaster cases are of low build quality. Bitfenix have some really nice cases that aren't expensive.
Wow I guess great minds do think a like. Read the OP and this case instantly popped into my head. HAF series is one of my favorites. And also depending on the size of the graphics card you might be able to fit one in here: http://www.newegg.com/Product/Product.aspx?Item=N82E16811156296 If you scroll down you will see a picture with the measurements of the room inside the case. I advise you to buy 2-3 extra 120mm fans for the case, because it only comes with 1.
Coolermaster cases aren't known for low build quality? They're known for generally being high quality, quiet, and having excellent cooling. Bitfenix is alright, but I wouldn't choose it over corsair or cm.
Something like the lower-end shinobi which is only 60$ blows something like that CM case in my opinion. I've never liked the build quality of the CM cases, always seemed cheap. But I agree, nothing beats Corsair.
I'm currently running a HAF myself, and they're amazing quality cases. Great cooling (hence the name... HIGH AIRFLOW), plenty of room, again, great quality. You really can NOT go wrong with a HAF.
Oh god please don't go with a HAF. Define R4 is an AMAZING case for the money. I'm pretty sure you can pick it up on Newegg for $100. Edit: Actually $80 right now with the code EMCPWHB37.