Yeah, i was thinking this RamDisk thing some months ago, but didn't install it then. Now when you mentioned it here, i decided to go and install it. I'm currently using it for Opera cache and browsing sure seems faster! I use Gavotte Ramdisk and disk size is set to 64Mb. It's free. Btw, disk size of Gavotte Ramdisk is not limited to 64Mb. I guess the limit might depend on how much you have the hard ram.
To use Ramdisk, the most important requirement is that the system has a lot of memory, much a lot than the size of Ramdisk that you intends to create. It works on system with minimum 256 MB RAM, where you’re recommended not to set Ramdisk with size more than 64 MB.
Also:
For the Disk Size, please choose properly and depends on your needs. If your PC’s RAM is more than 1.5GB, you can choose up to 256MB. I advice that you keep around 1GB for your system if you are using XP and around 1.5GB for Vista.
Well, i stopped using this Ramdisk for now. When it's set to 64Mb for Opera cache, it really fills up fastly, especially when watching YouTube videos. And i don't wanna set it bigger, because it just eats up RAM then. Also the difference in browsing speed is not so notable after all. Maybe i will figure some else use for it.