I think it is a Digital Single Lens Reflex (DSLR) camera that you are talking about. A DLSR camera, on the other hand, is like a DLS100H Marshall head, or a DLS40C Marshall combo. the DSL100H and DSL40C are great current production import all tube Marshalls, but the other designations do not exist and are figments of the imagination.
Getting something like a small, inexpensive Yamaha MG10xxxx EFX mixer would handle two or more microphones really well and it has a usb connection to a computer, as well as a simple stereo RCA jack output to a recording source; plus it is a very nice overall mixer for connecting powered speakers, mp3 players, guitars, and other band instruments and mics, etc., for live work. Recording can be a whole new World or dimension to music and can take a significant amount of time to master and successfully bring to use.
You should be able to master simple recording of one or two sources easily though, and should be able to bring this new realm of music production/reproduction into your skill set with a reasonable amount of experimentation and quality feedback from an experienced friend. And it can be done for a reasonable investment if you study what is available and find quality gear that covers your scope of need. On the other hand you don't want to wind up with an expensive pile of junk that you don't like and never use.