[gui-talk] RAM and Vista 64

[Don H]

I am plannin on purchasing a new desktop running a Vista 64 bit operating system.
Most base desktops have at least 4 Gig of RAM and most can be increased to 8 Gig.  Being a long time computer user from way back in the DOS days the more RAM the better.
Having search the net for info I am getting conflicting info as to whether the extra RAM is really used under the 64 bit OS.  It seems that this is based on the fact that few 64 bit applications exist and the 32 bit applications have limits on their use of RAM.
Does anyone have any further insight on this subject?  Since I purchase new computers rarely I want to buy one which will last at least several years.
Thanks