meh. eye candy in most games like that is negligable since the game plays so fast. unless you are standing there, staring at the walls or something. which you cant do, because people are shooting **** at you XD.
at low detail, im sure it could run those fps but anywy... to the point.
Ati tool is pretty much automatic. click the find maxcore/find maxmem buttons to find the fastest speeds those two items will reach, then, you can set those in rage 3d tweak. I dont use rage 3d for the oc tools, mostly for the hidden stuff that ati doesnt turn on in the drivers. mainly, alphablending, stretch bits *enables hardware transform in the os gui* and some of the higher level caching stuffs.
you can set the clocks in rage 3d though. which integrates into the ati driver tab effortlessly so its convenient. no additional software to load at startup. ati tool will literally find the max though. so you will want to set it a few mhz below ati tools max findings for stable use. mine detected 316 as the max, but crashed at 316.6. so 300 is as high as i go.
Cooling is of course a consideration, but it only helps so much on these ppga gpu cores that have a lot of plastic with a sunk metal slug. you will get some gains from better cooling but... i wouldnt get a orb or iceberg. i would find yourself a cheap amd stock heatsink and find a way to mount it. thermal epoxy works pretty well and it will cool welll. the only problem with this is the older radeon cards had the core lower on the card, causing most aftermarket gpu cooling to simply not fit because they would interfere with the agp slot.
my 9000 users a aftermarket copper gpu cooler with leds *basicly an iceberg 4 under a different name* that claims to be compatible with radeon 9xxx series cards.. sure, it mounts, but getting it into the agp slot is a challenge.
anyway. if you have some tools and knowllege in using them. you can mod cooling very cheaply. amd stock sinks are a dim a dozen and will out perform any aftermarket cooling with good fans and arrangement.
Feel free to play with stuff man. its fun to do and you can often come out with some pretty crazy ****nit