Combine javascript?

Hi,

I'm using the latest version of Atahualpa and I'm trying to speed up my website. I use the speedtest at http://tools.pingdom.com/ and it seems my number one priority is to combine javascript and css. "bfa_ata_file=js" is the most delay-causing script, apparently.

How do I do this with atahualpa in an easy way? I tried installing the w3 total cache plugin, but that caused my site to take 10x longer to load. I uninstalled it and went back to WP super cache, that's working but it doesn't have a built in javascript compressor.

Any thoughts?

PS. My sites are http://blogg.danielwerner.se and http://geekglobe.com