Yes but please do keep in mind that 1GB swap/page files corresponds (to the OP's) RAM in a ratio of 2:1.

If you find your page/swap file is lower than that 'magical' 1GB (or 1024MB) of RAM, it is a good thing to not touch it. In general it's a good thing to be careful with swap/page file because it may seem simple but the OS *has* to maintain a pagefile table *in* your RAM + do the disk I/O operations.

There are two reasons why excess page/swap file is therefore actually a resource hog:
1) The page table will get significantly large (each page corresponds to 1 entry in the page table @4 bytes at a 32bit system, but @8 bytes on a 64bit one)
2) The reason outlined in that thread (the OS will need to do a lot of work for a lot of data which simply can't be used efficiently: keep in mind that your phyiscal memory (RAM) determines how much pages can actually be loaded into it...)

Therefore I am very skeptical about a magical number of '1GB' of page file. It may work out just fine on certain systems, and I am willing to believe most systems designed for XP will indeed benefit from this (the 512MB RAM category) *but* "XP guru say magical number is" is not convincing for me.