i saw newegg sold  
 
http://www.newegg.com/Product/Prod [...] 6811999208
 
this but it seems like it limits ALOT of air flow anyone know what i can use better.  
 

Lol, that looks really bad. Probably not a good idea. A simple way of preventing dust from settling is creating negative air pressure in the case, which means having more exhaust fans than intake fans.

There'll always be dust in the air. Instead of trying to block it, which usually don't work that well, let it pass through.

yeah, i gave up on trying to control the dust intake, i simply take an air compressor and clean the inside of the case every 4 months.

how would  i go about and put fans infront of a case were the extra drive bays go? thanks much

Err... how many fans can the case hold? Setting fans in drive bays is tricky, depends on the specific case, and impossible for some. They're not meant for that purpose.

9 120mm fans i got a coolmaster 830

but it has 1 were the HDD's go

1 in the back

4 on the side 1 on top

i dunno were the rest can go lol

also

top fan should be intake or exhust?

front = intake

back = exhust

side = intake.

im i correct ?

Lol, then just set most of them to exhaust. You do not need more.

damn my cm 690 ha only 7 places for fans.

plz read my thing thow on top

i can only place 4 on side 1 on top

comes with 1 in back and 1 in hdd

should the top be intake or exhust.

side 4 should be intake right?

i dunno what else as i see no spots lol  How can it support 9 thow!!! lol

The side 4 doesn't have to be intake. Feel free to take some of them off and reverse them.

Collermaster Stackers usually use a 4-in-1 drive cage that accepts a 120mm fan. They are identical to the drive cage that comes with it. I'm guessing that buying 2 more and adding those to your empty 5-.25" bays will allow for the extra 2 fans. ;-)

could you link me to this drive cage? or w/e lol im still learning about building pc's

http://www.newegg.com/Product/Prod [...] 6811999141

something like that?

is there a better one?

I'm not sure which 830 model you have (nVidia Edition, or other one), but here is a start: http://www.coolermaster.com/produc [...] tbcate=215
 
And a minor correction: it's a 4-in-3 device, not 4-in-1. My bad. :-)

 
 
that page is blank to me.  
 
i was looking into this
 
http://www.newegg.com/Product/Prod [...] 6811999170
 
but there sold out! lol. idk..

Coolermasters' website is a little slow sometimes. Retry the link. The webpage is most definitely not blank. ;-)
 
I'm sure the other fan brackets will work, but so will 4 zipties in each corner of the fan. ;-)
 
You might try this one. It's for the Older CM Stacker, but it appears to work for newer 830 models, too: http://www.coolerguys.com/840556033615.html

 
Im useing my works T1 the page is blank.
 

Instead of using those filters, replace those type of filters or plastic covers in front of the intake fan with pantyhose.  You'll still need to clean some dust out every month, but it's still better than the retail filters and doesn't hinder airflow much.

You can have the world's fastest pipline out & in, but it's up to the hosting server as to how fast data is transmitted.
It took several tries for me to get their site up, and it actually froze Internet  Exploder for 30 seconds for me.

T3 is faster then T1

Internet 2 Is faster then T3.

im just going to leave it alone.. i could ducktape or w/e a fan in front lol.

*also thanks for the pantyhose* commet might work

I had a bear of a time finding these cages in stock, too (for my old CM Stacker). The one's from coolerguys doesn't have the fancy front cover to match your case, but one reviewer says it fits his 830 perfectly.
 
As for filters, I'm of the school of thought of getting used to regularly cleaning out the case once a month or so.
Unless the computer is in a dirty environment, then I would definitely use filters, though.
 
*just noticed the 4-in-3 cages are also "out of stock" at coolerguys.
 
Well, was worth a try. ;-)