In my experience, Iwill is a very good performing motherboard usually found with very good features and pricing.
I do not feel like the Iwill P4S is THE board to have.
There are MANY boards to choose from ...
which one should you buy?
I would need to ask some questions to help you pick the best board for you ...
Are you working within a budget?
How fast (how much$) a CPU do you really NEED?
What type of memory do you want to use?
You can find solutions for PC-133 SDRAM, PC-2100 DDR or PC-800 RDRAM
Do you have memory you plan to "re-use" for this system?
Do you need/want any other specific features?
IDE RAID, Hardware Sound, On Board 10/100 LAN, AGP PRO, USB 2.0, iEEE 1394 FireWire
ATA/133 hard drive support.
Do you feel more comfortable with an Intel chipset solution or would you consider others? (Sis 645, Via P4X266/A)