Trying to merge text files

I have 2 different sets of Trillian logs, logs from my old computer and logs from my new computer. The files are XMLs and .log files. Is there an easy way to merge the first files to the beginnings of the second file without doing them all manually?

There would be, and it'd probably be easier with unix commands, they're good at piping and shells and kernels and shit. I suggest you install cygwin\a unix OS, find a Linux chatroom, and tell them their command line is inadequate because it can't efficiently merge  .log and XML files together in a single command, and that Microsoft could do it in their sleep. You'll get an efficient shell script example from an angry Linux fag in no time.