ATX Power Supply Suggestions for SG13 Gaming Rig

So i've put together an updated gaming rig using some spare parts and some new to replace my trusty old i7-920 mid tower I built years ago. I tossed in a Thermaltake 750 watt semi modular PSU. But even though it's semi modular it's a gigantic mess and I can't stand it. I've been browsing power supplies but can't really come up with a solution i'm 100% happy with. (there may not be one since most ATX supplies are for people running full size ATX cases). I wanted to know what other SG13 owners are using.

It must be at least 650watt.
have two 6-pin PCIE video card power leads.
Be at least partially if not fully modular.
Have short-ish cables. Really not into the prospect of shortening the cables myself.

I'm currently running an Ivy Bridge i7 and a GTX 970 along with a single SSD.

Thanks in advance. Been a while since i've been on the forums.

SilverStone PSUs have flat cables and they make 140mm long ones which is great for more cable space. 650W is overkill.

EVGA recommends 500w as a minimum for a system with an i7 and a GTX 970. But I always like to have some extra headroom. PSU will run more efficiently. I've looked at the Silverstone PSU's, They're in contention.

Remembering that an i7 pulls maybe 60-70w at stock (without IGP), and the GTX 970 only pulls what, 150-180w? I think an SFX PSU would be just fine.

If it's an consolation I ran an i7 4770k with a mild OC with a MSI Gaming GTX 970 on a Silverstone SFX 450W PSU and had no problems. Total power draw from the wall was less than 250 in a gaming scenario.

I now run a Corsair SF450 with my sig rig, so i5 4690k and GTX 1070, and it's perfectly fine to the point the semi-passive PSU fan only spins up after 1-2 hours of gaming, but in general stress tests remains idle.

Recommended watts cover the poorly built PSUs and generic OEM style PSUs to ensure 'most' people have enough power to run higher-end graphics cards.

The SG13 I'm sure would benefit from an SFX PSU cable management wise.

I went ahead and ordered the Silverstone SFX-L 500w. The reviews on it say it comes with the SFX to ATX bracket. And it's 80+ Gold certified.

Solid choice. . Youll definitely appreciate the short cables in that case!