I do not have an answer for you but I am also interested in this.

I am currently undergoing IMRT with weekly (30mg/m2) cisplatin. So far I have done 14 rads and 2 cisplatin treatments. At the lower dose there is in my case hardly any nausea (so far) After IMRT it is planned to escalate to 5FU/cisplatin/taxotere IF that is feasible (cisplatin).

Some stuff:
http://www.cancer.gov/clinicaltrials/head-and-neck-cancer-updates
Look at #7. However I found nothing that was specific and with results for different chemo regiments AFTER RT.

Partial glossectomy (25%) anterior tongue. 4/6/07/. IMRT start @5/24/07 (3x) Erbitux start/end@ 5/24/07. IMRT wider field (30x) start 6/5/07. Weekly cisplatin (2x30mg/m2), then weekly carbo- (5x180mg/m2). End of Tx 19 July 07.