Hey guys, new to this thread.
I'm currently hoping to make a small form factor gaming PC/HTPC. Right now I have a laptop that has a dedicated video card, but it's showing its age and a gaming laptop isn't something I'm super-interested in. However, I do want to keep this laptop for general use and light/indie gaming, so I don't really need something for general use.
I understand the basics of video cards and RAM and a few other parts but I'm really pretty lost on things relating to form factor (what fits in what, etc.), which is why I don't really have any suggestions yet. I'll look around on my own but any help in advance would be greatly appreciated.
        Budget: 
$700 maximum, ideally closer to 500, though nothing's really set in stone (USA)
        Main Use: Rate 1-5. 5 being Highest: Light Gaming: 
3, Gaming: 
5, Emulation  (PS2/Wii): 
3 or 4, idk, Video Editing: 
1, Streaming games in HD: 
2, 3D/Model work (and what program): 
2, in case I get into it at some point, General Usage (Word, Web, 1080p playback): 
1.
        Monitor Resolution: I'd probably play at 
1080p on a TV.
        List SPECIFIC games or applications that you MUST be able to run well: 
Street Fighter V at 
60FPS is a must. Beyond that, I'm looking forward to the new Doom. A solid 60FPS framerate is more important to me than graphical effects, PhysX, SuperSampling, etc.
        Looking to reuse any parts?: I have nothing to reuse.
        When will you build?: probably 
mid-2016, depending on how long saving money takes and how much I need
        Will you be overclocking?: Maybe (which, I'm told, means yes 

 )
Thanks in advance for the help, I really appreciate it.