ive put this on linus tech forums and got some good opinions but, just hoping you guys on teksyndicate can give some good advice too :) and yes this is my very first post on this forum :D so, prices in new zealand are a bit out of wack, i dont exactly have a budget but just trying to keep it under 2500 nzd.
ah yeah, it was the cheapest modular power supply that i thought could happen the r9 290 :L fortunately, im thinking about ordering one from the us for about 125 usd (about 160 nzd) excluding shipping.. hoping shipping isnt to much. and nz doesnt really have an import tax either so :p
And TBH, the TDP for the R9 290 is 200w. I wouldn't be surprised if that system ran fine on a decent 550w-600w PSU. I'm thinking about picking one up for my own computer(which needs a gfx card), and pcpartpicker's wattage estimation is well under 550w(I have a XFX PRO550W PSU)
Unfortunately the extent of my knowledge ends here. I just know that the digital VRMs allow for more precise voltage control and are better than non-digital VRMs. I hope someone else can pitch in with more information.
Also, your case is going to be pretty big. Mid-Towers are usually sufficient for most builds, and a full tower is only really needed when you're doing some custom water cooling. If you don't mind the price and size, then go ahead and buy it. Just a warning: it'll be pretty big xP.
yeah i know :P im wanting to go the custom water cooling route except, its going to add atleast 600 dollars to the cost.. thisl include a gpu block as well (180).. i can get a full kit for the cpu inc d5 pump and 240mm rad (336). ill also be adding another 360mm rad in the top(70-100). extra tubing(for aesthetics) and some compression fittings :S