all depends on your actual card...... basics like overslocking the ram / core is easy.. and pretty much safe...... If u are lucky enough to have a R360 core ( u would need to take of the HSF to have a look, although nearly all newer 9800pro`s have the r360 core) then the next step u could consider woul be flashing the bios from a 9800 pro up to a 9800XT card... (the r360 core is an XT core)... is many guides about to help u with this also.... An aftermarket HSF and maybe ramsinks are aslo a good investment if u are overclocking....