If your budget is a little larger, the CorelDRAW suite of programs provides an absolutely absurd number of features including a Color Management system. Calibration is a big help but it is not perfect. There are some colors you just can't print correctly. Color printing, like any other art media, requires practice and patience to master. Now that you have a great image, you have to live with it.
Image files take up a lot of disk space.
You will quickly find yourself running out of room once you start experimenting with rendering. To help with this problem, many image file formats provide for data compression to reduce your storage requirements. The first choice in compression method concerns whether you are willing to sacrifice quality for disk space savings. Compression methods that do not return exact copies of the original when decompressing are known as lossy. Exact decompression methods are called lossless.