Forum Moderators: bakedjake
When you say "one database" are you talking one database like using table prefixes to seperate tables or one database server hosting all of your databases?
I like having different databases for each project so i can move them around and maintain them easily, however i have everything on one or two servers that are beefed up and backed up frequently.
If you can split them up without incurring extra cost, I would. If not, I'd leave it the way it is and just keep in mind that one day you may need to split them up.