Hi Blood Stone, what a Name:-}
It looks like your mixer is cool, you recorder is also very cool. I would not get rid of any out board stuff but I would add. You have the pre's in your console, the 69, and the Langevein DVC is something I've been drooling over. It looks like a Neve-ish pair of pre's would add to your colors. Keep picking up pre's that sound different over the years. It would be nice to have some more higher end reverb choices. And a variety of comps would not hurt either but What Harvey said about mics is the big big one.When it comes to buying mics, {and other stuff}, think of life time use. I would say you need a pair of small diaphragm condensers. I personally really like the sure SM-81's but, you might like something else. Go listen to them. I had some CS-1000's and the top end just ripped my head off and I stopped using them,then sold them. Others still use and like them. I still have an old CS-3000 that I pull out for Some Rapers. I would look at a pair of ribbons also. Beyer 160's are nice mic's that don't cost to much. For LDC condensers,I like the AT-4050's. I have heard the Studio Projects C-1 and really like it for male vocal.Harvey has written quite a bit about some of the inexpensive china mics that sound great. He would know too. Him and his kid are doin' some kick ass stuff down in Texas. For dynamic mics, I love my RE-20 and I love the sure SM-7. I also find that 57's and 58's can be used in a lot of places we don't normally think of.
Another thing that has already been mentioned is your monitors. Ya know, there are folks still using those damn things and they get fine results but, I bet they're not using that amp to push them.Look at Hafler {spelling?} I've got an old broken one here that I miss. I also have a Parasound amp that I really like. Monitors are a very personal thing and once you get used to them,your used to them. Monitors have gotten lot's better than the monitor ones though.
The other thing I always mention is the room. This is close to my heart right now because I'm fixin' to build new rooms. The room your in can make a bigger difference than almost anything else so read every thing you can about shape,size,treatment and so on { Ethan winers site is great}.
Just keep stabbing away at little improvements and they add up quickly. Spend outlandish amounts of time trying things and don't give up.
Peace.