120mm fan

Panasonic FBA12G12M Panaflo with 86.5 cfm
http://www.xoxide.com/12paulqufan.html
http://www.hardwarecooling.com/product_info.php/products_id/512

Check out this bad boy.  http://www.xoxide.com/fmc3xw.html.  103 CFM.  Comes with a controller to slow it down when you don't need it to blow so hard.  

Here is the biggest Delta AFB1212SHE, I couldn't find one in stock anywhere though, so you may have to wait for one.  It move 152 CFM.

Ah, yes!  The Delta!  I read about a Delta with 140cfm, but 152?!  That's awesome!  I would like to have a fan that blows more than a 92mm Tornado - 119 cfm.  I found this:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=6756626589&category=3673#ebayphotohosting
I'm willing to buy it, but seeing as how I've never before seen an AFB1212SHE, could you please tell me if this is, in fact, that fan?

Is there any 120mm fan more powerful than this?  Are there four 60mm fans that can blow more than 152 cfm?

>I need the most powerful 120mm fan ever made
none of the muffin style fans work well adainst back pressure. The cfm ratings are for no air pressure.
Better high power fans are the centrifugal types. Also called reverse curve impeller types.
Try google for many distributors.

Try Sanyo Denki, rare as gold, but worth it, it gonna blow your case away.

LOL - your gonna need some hearing protection too.
http://www.fortliberty.org/military-equipment/hearing-protection.shtml

And maybe safety glasses? - just to be safe.
http://www.safetyglassesusa.com/

hehe, you guys are nuts...

The Delta you mentioned on eBay is the right one.  The TFB1212GHE Extreme at 220 CFM.  WOW.

The TFB1212GHE 220 cfm is very, very good.  I like it a lot!  However, 29.4W might be a bit too much.  This seems to be 2.45A, and no fan controller I've seen can handle that.  Supposing that I were to purchase one, what would I need to be able to take down the voltage to about 9V or so?

I found it here, too:
http://epowerhousepc.com/product_info.php?products_id=588

Very interesting.

http://www.digikey.com/scripts/dksearch/dksus.dll?Detail?Ref=265635&Row=45015&Site=US

Oh yeah, that's 200cfm

it's a little bigger than you wanted, but it's 300cfm

http://www.nmbtech.com/products/fans/dc6820pl.html

That 300CFM fan requires 48V DC to get to that.  Very nice, but creepy at the same time.  It seems that the Delta has won!  Sorry about the delayed response, and thanks for the great recommendations.

Thanks. Let us know what you decided to get and maybe a link to some pics.
-Chuck