Budget? You might want to follow the guidelines from the link in my signature...
Case: Some good ones are the Antec 300, 300 Illusion, 900 or 902 or Coolermaster Elite, 690, or HAF 922. Some of these might be considered "flashy", but are all very good cases. It doesn't make a huge difference, as long as it's big enough for the GPU and has some fans.
PSU: Any 650W unit made by Corsair, Antec, SeaSonic, Silverstone or PC Power & Cooling.
Will a 650w power supply be enough case im goin to overclock it in about a year buy a cm v8 cpu cooler getting another hd 5850 and will be upgrading my ram kinda like 2 gigs more and srry forgot to mention my buget is kinda like 1000 to 1200 us ill be happy on the lower end
I would definitely stick with the HD 5850. It's a much better choice as you don't lose an upgrade path and the card is more future proof.
Depends on the resolution. If you've got a 1600x monitor, it will play every game (30+ FPS) at max details, but maybe not max out the FPS (60+) on all of them. If the resolution is 1900x, then the 5850 will not play Crysis on max details, but it should play everything else at max details. I doubt it will max out the FPS on anything at 1900x.
I am going to be using my old hp w19e moniter which has a native resolution of 1440 by 900 but on my old pc it supported the screen resolution on xp and vista but on win7 there were only 3 options 800*600 1280*780(which was smaller) and 1600*1200(which was to big and wasent fitting) so just wanted to know will this problem come in my new pc to
thanks for advice
Here is the deal at the resolution of your monitor scratch the idea of getting anything higher then a 5770. The Monitor is going to be your bottle neck. If you plan on upgrading to a 19xx monitor then by all means go with the 5850 or higher.
They were using a higher resolution. The 5850 is better, but unnecessary for your resolution. There would not be a noticeable difference between the 5770 and the 5850 at resolutions lower than 1920x1080.
As for offering the native resolution, I have no idea why you're not getting that option now. That shouldn't be something that's driven by the GPU.
Just to tell the specs of my old rig are intel p4 3.06 ghz 64 mb vga video card 2gigs of 800 mhz ddr2 ram and i want to know will the hd 5770 or 5850 be showing the resolution
cause i even have a sony vaio cs notebook it has a pre fitted nvidia m9300 gpu which shows its native resolution 1280*780 even in windows 7 so i just wanted to know should i even buy a new moniter if something is wrong with that