I first saw her when I had a membership at www.sooperhero.com .  Recently I found her omp listing:

http://www.onemodelplace.com/model_list.cfm?ID=15912

and saw she is now in this site also:

http://www.ruemorgue.com/video_cd/titles/execution/index.php

try the search for her and you will see she is on there a lot.

She is also on easy dater:

http://www.ambushinterview.com/galleries/c/31/index.html

http://www.easydater.com/mov021.html

also found her here:

http://www.babewarehouse.com/model_portfolio.php?model_id=1841

and her own site here:

http://www.savannahcostelloonline.com/

If anyone can find me more vids of her (preferably hardcore ie. easydater) please add them.

Thanks!

found one more:

http://www.houseofpantyhose.com/Hosted/Savannah/Catsuits/003nglsL_skJln_bngbn9ac4a.htm

http://www.porn-service.us/5/byi7/v61.html

Same set.

http://www.houseofpantyhose.com/Hosted/Savannah/CandyStriper/002LgFrk1239f.htm