[7steps2much]

Depending on how important this is to you there is always the option of getting yourself a VOIP number and a softphone on one of your computers and hooking a small script into it to do whatever things you want to acchieve.

Never done anything like this but I imagine that it might not be too hard since the infrastructure is pretty much there already. However building a "protocol" on top of SMS might be somewhat tricky. You might want to write an APP or something for that.

As for "fire and forget" solutions ... Well, there are email to SMS gateways if i remember correctly.