Good AM2 HSF that will fit in an Antec Sonata II Case?

[NoodleTech]

I'm putting together a new socket AM2 rig with a X2 3800+ and I was looking for a good CPU cooler.

I have an Antec Sonata II case and I plan to install the antec ACAG air guide, so the cooler can't be really tall like the Zalman 9500 series. Actually, I'm not sure how tall it should be, but I was hoping that somebody who uses the air guide could point that out.

Heres a picture of the air guide unit:
Link
It's the black thing on the right.

My motherboard is a MSI K9N NEO-F, so it must fit that too.

And finally, I am willing to spend $30-$35 for it used or new.

Please help, thanks.

 

[RallyMaster]

Find a stock Skt939/AM2 heatpipe cooler used by the Opterons/higher level X2s.

 

[A554SS1N]

If it means anything, most people who have tried the air guide have said it's better without it.