Hey I'm just planning to start with a small 2D isometric game, I would like to draw them in PS and already downloaded an isometric grid file. Besides that, wonder if there are guidelines on determining the size of the tiles. Should I just make them big enough and then scale them down? The size should always be power of 2? I'll really appreciate any suggestion you can give me, I'm a programmer and as you can see I know almost nothing about design. Thanks!