My second problem... Can I use my printer that appears to only have MacOS & Windows installation executables? Same with my scanner...
3rd... Would DSL be best for my computer, as it has less than 400 MB of RAM? Or would some other distribution be better? I'm planning on running a website from my computer... That's also a "Which one allows...?"
4th... I have lots of computer programs. Some of such as Macromedia Flash, Adobe Photoshop, and some others... I heard there's a way to run Windows applications on Linux, but with some certain software or something... Does Linux have it's own distribution of these softwares?
For partitioning you can do it from a Linux live-CD. Boot up from the CD and shrink your Windows partition from the partition manager (GParted is the name I think). Then install to the new free space. Then you can configure GRUB (boot manager) to have both OSes installed.
As for printing, could emulate or try to find working drivers. Some printers have pre-made drivers already integrated into the OS or available in repositories or tools to emulate them.
DSL (damn-small-linux) can run on just about everything, but using it normally can be harder to learn. More things have to be installed/managed manually by the terminal.
As for your Windows programs, some may run with WiNE, some may not. There are freeware (GPL) programs that can do many of the functions of many of the costly programs, but will not have as many features. You can just keep Windows around to use those programs with the way of dual-booting I mentioned above.
mmm
great help there buddy
ask a professional if u need help... linux should have a support site or something like that