hello mate
there are quite a few pics from Slough over in the gallery section of the Neo Buggy website. some from last August here -
http://gallery.neobuggy.net/2009-Races/Pro-Line-Slough
also look up at the top of this page & click the PHOTOS text
that will take you to a big gallery index page for meetings covered by Jimmy (oOple owner & Boss)
as for settings i'm not too sure as i'm very new to DSLR's myself but i'd guess a wide aperture & quite a fast shutter as the cars aint slow
if you have any cool pics you've taken ypurself post them up in the cool pic thread. always nice to see some decent pics