My first time building my own rig, I just need tips/suggestions on what I should get.
On a budget of around max $150 per part(if its reasonable)
I'm trying to build a "gaming pc" not meant to go on max settings on everything.. just looking for performance and good FPS.
You don't need a Z77 motherboard with an i3, they're not unlocked and you will see zero benefit.
Additionally, might I recommend you go with atleast a quad core...if you're gaming, you'll thank me. The i3 in newer games is very underpowered and struggles to keep up with games like Crysis 3, Battlefield 3 multiplayer, Planetside 2, Far Cry 3...and many others. Not to mention the next generation of games will all be geared toward a 4+ core CPU.
If your budget is tight, consider the FX6300, for the same money as the i3 you chose, instead of 2 cores, you can get 6 cores...with a faster clock. It can also be overclocked, and it runs games better than the i3, and as well as most i5 CPUs...especially if you overclock later.
Also, 8 GB RAM is plenty go DDR3-1600 MHz...your choice is fine there.
Case is good, for the PSU I prefer Corsair, Seasonic, PC Power & Cooling, and Antec. Especially if you like modular PSUs consider PC Power & Cooling, plus their PSUs tend to be a bit quieter than others out there.
If you want to consider AMD, then look at similar boards for them. You would want at minimum a 970 series chipset, if you want to go all out, get a 990FX chipset. For those, I would recommend:
Asus Crosshair V Formula Z (for heavy overclocking)
Asus M5A99X EVO R2.0 (for light or no overclocking)
Asrock 970/990FX Extreme9 (for heavy overclocking)
Asrock 970/990FX Extreme3 (for light/moderate overclocking)
Gigabyte 970/990FX UD5 or UD7 (for heavy overclocking)
Gigabyte 970/990FX UD3 (for light/moderate overclocking)
MSI 990FXA-GD65V2 or GD80V2 (for heavy overclocking
MSI 990XA-GD55 (for no/light/moderate overclocking)
I second going with an FX 6300 over an i3. I would go with ram that doesn't have tall heatsinks though. They tend to get in the way of aftermarket coolers.
+1 forgot to mention low height on the RAM, nice catch.
Also, $150 per part or less means you have about $1000 to spend, if you buy the FX6300 for $129.99 and the Asus M5A99X EVO R2.0 for $119.99 and save money on the other areas as you are...you should be able to buy something like a HD7870XT or HD7870LE for about $230-240 and drastically upgrade your performance in many games...as many games are GPU bound more than CPU bound these days. Though, the ones that are CPU bound are brutally bad for dual core CPUs and weaker 4 core CPUs.
Here's a $770 AMD build that will really be great for you, if you want to wait on the HD7870XT that saves you $239 right now, and you could acquire a similar card later.