Look again. If it's the original Dell PS, it's either 525w or 875w.

Best way is to pop it out and take pic of large sticker on top.

I recommend a "single card solution".

The PSU is a Dell Precision 525w Power Supply N525EF-00 NPS-525BB - U597G.

What Card and PSU would be the best bang for the buck to replace my dual 460's?

The specs are Core i7 2600, 12GB Ram with liquid cooling.

Any help would be appreciated, if something is already posted on this topic I wasn't able to find it so please link.

If you use the Dell website to "upgrade" your R3, the only card they recommend is the Nvidia GT640.  Strange, because they sell other video cards and any modern card should fit.

Your PSU should be okay for any single card - even the titan. 

If you tell the forum how many monitors you run, at what resolution, and what applications you use and games that you play, you have a better chance at someone giving you a quality recommendation.  What's going on that your dual 460's can't handle?

If you want to purchase through Dell, the most advanced card they sell is the PNY GTX 770 2GB.  Nvidia announced a retail price drop to $339.00 two weeks ago though (to compete with AMD's new cards), and I see Dell still has it for $419.00, or the OC'd version at $469.00.  :(  :(

Unigine Heaven Benchmark 4.0

System

Settings

The 460's seem to run fine with Battlefield 4 at 1920x1080 but I'm looking to go higher resolution.  I've got them oc'd in the bios almost to max so I guess I could try maxing it out.  I don't think that will get me higher resolution though...just higher fps and heat right?

I put the heaven score in here for reference, not sure how it compares to gaming rigs coming out these days.  I'm considering SLI GTX 660's as an upgrade but the first post suggested a "single card solution" any reason why?

Thanks much for the suggestions and help so far.