SSD - Samsung 830 if going for 128GB, Samsung 840 Pro if 256GB. Avoid samsung 840, I don't feel it's worth it. Corsair Neutron is also a good choice. Anything less than 120GB I consider too small as a main drive. Avoid sandforce controller like plague.
Now about SLI/Crossfire. It is always NOT worth it, if you can get same performance with a single GPU. It is due to the ineffiency and average FPS. I really don't want to go into detail so just take my word for it.
For GPU I recommend GTX 680 over 670 if you really care about being an elitist (join us!!). EVGA is the recommended brand when you go full out, due to customer support, but just remember it is a reference card. It is not special in any way, besides being an EVGA. (I own a limited edition EVGA GTX 680). For GTX 670/680, I would recommend the MSI GTX 670 Power Edition (sometimes called Lightning Edition). It allows higher overvolting for higher overclocks. You also don't need 4GB video memory. Your GPU will never be able to handle that demand anyway.
i7 3770K can easily hit 4.2ghz on default settings, you just put Turbo to 4.2ghz without changing anything else.
Your mobo is pretty over kill, I have a bunch of those at work. They're nice, but the lack of PCI is annoying. I would say get a ASUS P8Z77 <insert premium thing>, how much more premium you want is up to you.
Last edited by Shugi; 11-15-2012 at 08:12 PM.