Senapin,
First off, are you unhappy with the current sound? If so, what specifically do you think is missing and/or lacking?
Looking at your equipment list and having heard each piece (individually), in my opinion, your system should sound quite nice indeed. Accordingly, perhaps room accoustics may be an issue? Before making any component changes, a closer look at your room as a piece of equipment might solve any deficiency, real or percieved, in the system sound.
In my opinion, the Rogue 99 and 120 are fine pieces of equipment - not just for the money but in their own rite as well. The M120's are quite nice throughout the full range with good soundstaging and very tight, deep bass. Lack of adequate bass using tubes is usually one of the major reasons given for a switch to solid state, however, in my experience having heard the Rogues for many many hours on end, this shouldn't be an issue. In fact, if I had heard the Rogues first, I may very well have made different purchase decisions.
In my opinion, I'd stick with what you have and believe that, all things being equal, you will have to spend a significant amount of money to better what you aleady have.
How about some room / equipment pictures?
Regards,
Garry

