Hi newcomer and welcome to the Tom's hardware forum.
Exist some things that u need bear in mind to buy a mobo.
1- What do u want install? Crossfire? SLI?
2- How much RAM? What speed?
3- What is ur budget?
4- Do u want a very good OC, or just a normal OC?
Now, the Crosshair IV is one of the best mobos that u can get for the money, but if u don'y want use OC or Crossfire don't have sense spend $230 in a mobo, when u can find the Gigabyte 890FXA-UD5 that do the same job with less price. Or some 790FX mobos that are very good in price/performance and OC.
I apologize for the scatter-brain post I made...it was before coffee.
1) I want to install an HD 5830 and eventually Crossfire when I work up the cash.
2) I was looking at, as far as RAM goes, either 8GB of G.Skill Ripjaw 1600 or 6GB of 1333 (whatever I can get as best value)
3) budget isn't really a major major concern but I would like to keep my build under 1400.
I should mention though that I already have windows 7 and a lot of HDD space. Also have a sound card and wireless card.
4) I would like to overclock a good amount but I wouldn't call myself an overclocking enthusiast. Taking the 1055T to ~3.5GHz would be enough excitement for me. Didnt really feel the need for the unlocked multiplier of the 1090T.
The thing that really attracted me to the IV is that its a top end board. My buying philosophy has always been that if you buy quality now, you won't have to buy for a while. I have heard really good things about the 890FX chipset (even though it's not too different from the 790) and that it has a really nice BIOS.
Hope that gives some more insight and provides for some good feed back.
1- My advice is that build the rig based in the Crosshair IV that is a very solid mobo
2- I would change the 5830 for a 5850.
3- Can I suggest to you a SSD for ur applications? a good one is around $115 on the egg.
4- Since AMD don't support Tri-channel, the 6GB isn't a good option. Go with 8GB that can be used for ur Adobe applications.
5- The Crosshair IV comes with a X-Fi sound card, so, u can re-sell ur current sound card or install this over the X-Fi that comes with the mobo.
Finally, if the build doesn't fit with your budget, u can go with the Gigabyte 890FXA-UD5 that is less expensive a have a very similar performance that the Crosshair IV.
I was just about to pull the trigger on the Crosshair IV, but complaints are now popping up on Newegg and elsewhere about overheating problems with the northbridge. Apparently the screws on the northbridge coolers are too short so it isn't completely connected, leading to overheating problems that can be bad enough to shut down the board within a couple of minutes. I'm now taking a hard look at the GA-890FXA-UD5 instead.