sample markup to use with imagefield/imagecache preset to set 'inline/float left'??

Issue Summary

this sounds like it's about to solve a huge layout problem for me - but i'm a little unclear about how to drop in basic code bits for this..would love any help or insights or sample code to cut and paste...

my situation: i have a content type with two uses of imagefield - one is the 'main pic' that goes at the top of the story - only ONE image may be selected for this - the other is 'other images' which is just other imagefield images set to unlimited for a little gallery - both pop out in lightbox, and it all works perfectly...

BUT here's the need: i'm trying to set the first imagefield (single image) to display inline with a float left AND then the second images to display in a row that automatically goes to a second row if the images run too far right (right now they stack vertically by default, which is fine, but makes the page huge and long if there are many pics

the first imagefield preset is larger for a featured pic, the imagefields below are set smaller to allow for many..

any idea what the correct css snippet is for this (via this module?)