i have red hat 7 discs should i rather try to get damn small linux or something? is it easy?

What are the specifications of the machine you will use? Particularly what Memory does it have and how big is the Hard Drive? What do you hope to use the machine for? Do you intend to dual boot i.e. retain Windows and also run Linux, or do you wish to only use Linux. To get a flavour of things first you should get a "Live CD". This runs entirely on the RAM Memory and does not initially install anything to the Hard Drive

i hvae several computers or can build one anything from 166 mhz to 2400mhz i wont have duel boot at all

There is nothing basically wrong with Redhat 7 - it's just a little dated. I think I had the last Redhat, 8 or 9, before they split to Fedora. Fedora is now Core 5. If you are relatively new to Linux and have access to fair resources I would recommend PCLinuxOS or Mepis. They are both "Live CDs" and can be tried without installing anything. PCLinuxOS has the advantage of having some propiatary programmes. IT need at least 256MB of RAM.It has Flash, Java and Adobe Acrobat. It works "out of the box" with no additions. I would recommend a podcast for "newbies"at www.linuxreality.com. Episodes 8. 9 and 10 deal with PCLinuxOS. Because of licensing some distros eg Fedora Core 5 do not include all the files to play MP3s, DVDs etc. You specifically mentioned Damn Small Linux. It is a very limited distro for machines with limited resources - like old machines.

RedHat 7 will be very different from any modern distro. The oldest release, 7.0, doesn't include Mozilla much less Firefox, and includes a version of XFree86 capable of blowing up your monitor if misconfigured. Use a modern, light-weight distro.

Try something different and if you want to use something from that stable, I'd recommend Fedora Core