MySQL on a ram disk?

[Ryan Stille]

We have an intense data process that runs every few minutes, clearing 
and then loading a database with thousands of records of data, which are 
then queried on from a website.  The periodic load takes about 20 
seconds.  Some of the front end select queries take a second or two.  
This is all running on MSSQL, and we are wondering if we could find any 
speed improvements by moving to MySQL, possibly running on a ram disk.   
Any input appreciated.

Thanks,
-Ryan