uhh.. i found out that most ati9800SE softmod without problems to 9800XT (without extra cooling) with the omega drivers and pumping up the meagaertz with the radlinker... (precisely my Ati Hercules 9800SE AIW did) pretty cheap for the value...

and if you dont mind an artifact here and there(eg previsualization of HEAVY things) you can put it over the edge to 1.3x the frequencys of the XT...(i bet it could be stable with watercooling! )