<< Also if I were going to get an upgrade mobo, I would also get the 266MHz t-bird, and DDR RAM. Just trhe KT7A won't help all that much... Actually, when the prices drop on the MSI Pro2, I'll get one and play for awhile... >>
Actually moregolf, if you get a KT133A mobo and lower the multiplier in your system and increase the FSB to 133MHz, you will see a big boost in performance. This is where most of the DDR boards' perofrmance increase comes from, NOT, I repeat, NOT the DDR RAM. DDR RAM is still too pricey and doesn't offer enough of a boost to upgrade from something like this system.
<< isn't it the faster FSB the faster the system?? >>
If you run at the same frequency, the processor on the faster FSB and lower multiplier will come out ahead. So, let's say you run CPU X at 10x100, 7.5x133 and 6.5x154, all corresponding to 1000MHz or 1GHz, the processor running at the 154MHz FSB will be faster, because the RAM and PCI devices and such are all running faster.
<< will a duron get to 140FSB with KT133A?? >>
It depends what multiplier you run it at. If the multiplier isn't too high, it should be able to do that FSB, provided the motherboard will do it.
<< the kt133 is limited to 110FSB as what i know >>
Pretty much. The highest anyone's been able to get I think is about 115MHz, but as a rule, about 110MHz FSB is pretty much the limit, maybe a bit more or less, depending on your specfic motherboard. For example, you may have yours running at 111, and let's say it breaks, you need to get it replaced. The replacement, same motherboard, same chipset, manufacturer, revision, etc... may only do 108, you can't be sure exactly.