I wouldn't mind trying a RAT 9, but currently use a G700. It will easily manage a day without dying if you upgrade the battery. Mine has a 2700mah battery, and I have a spare handy if needed, but it can use alkaline as well. I use it A LOT and only had it die on me twice (other than those times I forget to charge it), but I suspect it may be time for a new battery. It looks a bit cheap, and I often like to think it's second rate in quality compared to the older MX Revolution, but after disassembling both, I can say that the G700 is quite well made actually (it just looks kind of cheap).
Good luck on colored gaming mouse. Good gaming mice are not exactly plentiful, and most companies seem to think black and lots of buttons(!) equals a gaming mouse.
As for keyboard... The best depends.
Realistically, once you start down this path, if you like to tinker, your "best" will be the one you build.
Are you wanting a compact, TKL, or TK? Obviously a Phantom, LZ, Kmac, etc will probably rank the best if you went by popular vote, but they aren't exactly practical (hard to get and expensive). On the other hand, if you just wanted practical, the answer would be pretty easy once we knew what you wanted. My big thing is feel, it doesn't matter what it is, if it feels like junk. It also depends what you want it for. For that reason, the switch is most important, however that isn't much of a deciding factor when they all tend to offer the same switches.
If you want just a general recommendation, off-the-shelf, I think the Filco is probably the best. It's well made and classy looking, not to mention compatible with pretty much all keycap sets. It holds no surprises. A cheaper alternative is the Cooler Master QFR. Both are pretty hard to go wrong, especially if you plan on changing keycaps.
My personal setup is in my signature. Filco TKL, Vortex aluminum case, custom feet, Red Alert 2 keycaps, Jailhouse Blues, o-rings and lube. I still need a few more tweaks (it will never be done), but I'm happy with it.
