I would advise static page file on any winblows system.
The size you set depends on your typical usage.
I have noticed SH3 using nearly a GB alone, so if you have less than 2GB RAM, a larger page file is in order.
I'm using the largest static page file allowed in W2K, since I have 4 HDs in this rig, and I'm not pressed for space.
The maximum size is 4094MB due to the 4GB file size limit in 32Bit OS's, (this is probably not true of 64Bit OS).
I have Winblows on C:, Page file on F:, Games on G:, and H: is used for storage.
Static paging can greatly reduce stutters caused by Page file resizing during gaming, which is the main reason for locking the size.
I would strongly recommend using the largest size possible if you have anything <2GB RAM with HDD space to spare.
Hope this helps!