HELP! My car clunks

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<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cry.gif" border="0" valign="absmiddle" alt=''> My car feels fine but it makes a "clunk clunk clunk clunk" sound when i'm first starting off, when I'm driving slow or when I come to a stop. I have absolutely NO CLUE what to look at <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/nervous.gif" border="0" valign="absmiddle" alt=':nervous:'> Sway bars are still attached properly, tire pressure is good, shocks feel fine and I don't see any leaking...I dono what else to look at. I didn't notice it untill I lost traction (had just started to rain...still driving like it was dry). The light turned green and I was trying to take off fast cauz my lane ended ahead and I just sat there spinning my wheels for about 2 seconds when I got traction and speed off. I don't see how that could have hurt anything but its the last thing I can remember doing before I started hearing this clunk sound. Anybody have a clue what it could be? <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/eh.gif" border="0" valign="absmiddle" alt=':eh:'>