Upgrade Graphics or just run Xfire

what is your
max budget for gfx card?
gaming resolution (display res.)?
psu model (+12v rail's amps)?
case's dimensions?
i'd say oc your cpu with a good cooler and get a gtx 560ti.
2x 5770s would indeed deliver increased fps except the problem of microstuttering. single 5770 is quite capable for gaming. it's so good that amd decided to not update the card and simply rebadged it as 6770 to fit into the newer 6000 series.
if you're okay with microstuttering and won't upgrade your whole rig for a year or two, get a second 5770. otherwise, stick with the 5770 till ivy bridge/piledriver comes out and decide then.
tom's gfx card hierarchy chart (very useful):
http://www.tomshardware.com/reviews/gaming-graphics-car...

150 - 200 ish

1920 x 1080

CORSAIR Enthusiast Series TX650M 650W ATX12V v2.31 / EPS12V v2.92 80 PLUS BRONZE Certified Modular High Performance Power Supply

I have never over clocked before. The stuff I have says it can handle it I am just not sure what I have to do to make sure it can handle it.

I am not sure what case I have, I have had it since 2003 just been using the same case, it is ATX if that is what you mean?

you can find a 6870 for that price.
that's a really good PSU.
what cooler do you have?there are a bunbh of overclocking gides.google it  

Sell your 5770 and grab the 6950(may unlock to a 6970)... if you wait a bit til the 7xxx series get out more, the 6xxx series may drop lower in price... just a thought.

... I have the 5770 also, and it does run rather well on these new games. I would wait a month or two and see if prices drop... no NEED to upgrade now, your card can handle any game now... just not ULTRA settings.

I would need to upgrade my cooler to over clock, I only have the stock AMD cpu fan on it. Plus 3 other 120 mm fans in the case.

What would you recommend for a cooler?

coolermaster hyper 212 evo is a good cpu cooler.

One more question. If I want to run three monitors, will I be able to do that if I crossfire 2 of the Radeon 5770.

this page should give you some ideas on eyefinity (that's what amd calls it's multi display tech):
http://www.amd.com/us/products/technologies/amd-eyefini...

Yes... You can run 3 monitors now on 1 5770... you can also do it on 2 5770's... Be aware that your FPS will drop when you run 3 monitors... not too much, but it will take a hit.