Sorting PS brush sets

I'm not so great with PS 'n' stuff, but there was one thing that was always annoying me, whenever I wanted to select something between brush sets (#1 in image - this is where I like to select between the brush sets). Default brush sets were all mixed with custom brush sets. I didn't want to delete the default ones, but thought I'd create a separate folder, but inside PS any folder structure is ignored and you get only one list of sets. I thought it was the end of it, but recently found out something about this folder (Win 7)
C:\Users\Username\AppData\Roaming\Adobe\Adobe Photoshop CS4\Presets\Brushes
Putting custom sets here and leaving default brushes in
C:\Program Files\Adobe\Adobe Photoshop CS4\Presets\Brushes
then in PS the lists of default sets (#2 in image - maybe I've added some other simple brush sets there) and custom sets (#3 in image) are separated by a horizontal separator. So in PS there is no tree-like structure but at least they're separated.
I guess for other systems the structure should be very similar.
Maybe you have tips of better managing the brushes? (Preset Manager is way too far for me )