Need some help with chosing memory

it will work fine, but i recommend something with lower latency or voltage, like these:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

That doesn't matter. The RAM is fine, but probably you overpaid for the specs. However, several other parts aren't. Namely the PSU and HDD.

+1, get a f3 1 tb, and a ocz, corsair, antec, silverstone psu, and you might wanna consider either a 5770 or 5850

I live in Norway, so hard to say. But the ati 4890 I got for the same price as what the nvidia gtx 260 cards go for, and since I am building a amd system ill go for ati graphics.

I did a currency convert, and this pc comes to 1,300. But that is including a 24" monitor,cd-rom, mouse&keyboard and chasis. but we have higher taxes here on electronic equipment.

hmm... but the 4890 outperforms the 5770 card. And Dx11 propably wont be used in games for a long time anyways

The 4890 is fine.

The other things are good recommendations. Add FSP and SeaSonic to that list of PSUs.

but it is sill a viable choice, and the 5850 is probs the best, but maybe a bit too expensive.

Let me rephrase the "4890 is good". If you're planning on Crossfiring later, the 5770 would be better down the road. 5770 CF beats 4890 CF. It also uses less energy, runs quieter and cooler.

That said, neither would be a bad choice.

The PSU is Swedish made, so they propably dont sell it mant places, but its cheap,and got ok reviews, here is the spec of the psu, i dont know if they are good or not.

Form factor ATX12V 2.2
Power provided 620 W
Input current @ 115 VAC 10 A
Input current @ 230 VAC 6,3 A
Tilslutning
Strømtilslutning hovedkort ATX12V v2.2 (24-pin + 4-pin),
PCI-Express 6-pin connectors 2 stk
Serial-ATA connectors 4 stk
4-pin forbindelse 4 stk
Floppy connectors 1 stk
Generell informasjon
Temperaturregulator Ja
Lydnivå 20 dB
Avkjøling 120 mm FAN
Garantitid 2 år

right, and considering that most of the games you love now, their sequels will be using dx11, that also makes it a better choice. also, like madadmiral said, less power required, and more modern card.

The PSU is not a part you want to get "ok" reviews. You want it to have great reviews. A bad PSU can very easily make a great build into a giant paperweight. Spend the extra for some quality.

Might be right, Maybe the 5770 will outperform the 4890 in the future cus of updated drivers & stuff

right, and do you know if that psu has an active PFC or how many rails it has? it might say, but im not terribly fluent in swedish  

No, but I found this extended info:

Model number AC-620WRDPLUS
Color Black
Form factor ATX
Fan 12cm
Noise level 20dB
Fan control Thermal control
ATX Version ATX 2.2V
Input voltage 220 ~ 230V
Input current 6.3A
Main cable 20 + 4 pin
PCI-Express 6-pin 2
Sata 4
4 Pin peripheral 4
4 Pin floppy 1
P8 cpu 1
P4 cpu 1
+3,3V 22A
+5V 16A
+12V1 15A
+12V2 16A
-12V 0,8A
+5VSB 2,5A
Operation temperature 5~45°C
Power cord Included
Safety TUV, CE, CB
Sleeved cables Yes
Dimension (WxHxD) 150 x 86 x 156 mm
Warranty 2 years
EAN 7340037912109

hmmmm i cant tell much, but the amps look a bit low... try to find a better one, even if it costs much more, or only has like 600 watts.

Why is the spinpoint F3 500gb so much recommended here? it only got 16mb cache, the one i have chosen has 32

Edit: nevermind, i found one with 32mb cache, and i see it has two 500gb plates, instead of 4 plates like some other disks. I guess this will make it quite much faster, so I am chosing this instead, thanks for the tip

haha cache=just about nothing. the f3 is so fast because it uses 500 GB platters, so it takes less time to sort through 2 320 Gb platters. it is faster, quieter, cheaper, and safer overall. it is the best hdd on the market.

ok, so then will the 500gb version with 16mb cache be faster than the 1gb, does it have a single 500gb plate? alternatively would it be better buying 2 500gb versions

no, if you want 1 tb, buy the 1 tb f3, if you want 500 gb, buy the 500 gb f3, dont overthink this...and not really, both would be about the same speed.

So i found this PSU instead at a good price: OCZ STEALTHXSTREAM 600 WATT PSU
atleast it is a know & respected brand, I dont wanna risk frying my pc with a cheap psu. anyone got any experience with this psu, is it a good one?

That's a decent one. I would say it's just behind the Antec PSU as far as quality.

Wait, i just read something disturbing, the 4890 gtx recommends 2 6 pin connectors, this one only have one, is that a big deal

I see that the COOLER MASTER REAL POWER MODULAR 620W has 2 6 pin connectors

and then there is the ANTEC EARTHWATTS 650W, but it dont tell how many 6 pin it has

I would go with the Antec. Not having enough connectors isn't a problem, as you can buy adapters. Just look at pictures of the card to see if it actually uses 2 connectors. Sometimes they'll say "recommended" because you'll need it for Crossfire, but you don't really need it to start.