This is the most important thing to do. Get to know your monitors: its your reference!!! And more: you have to like the sound coming from your monitors, if its a drag to listen to them: get rid of them, buy something you like the sound of.
And: NO SUBS, thats for home theatre.
I have some Tannoys around here, and my favourites are my Monitor Golds, and its amazing how I sometimes get fooled by my other Tannoys, getting to a reasonable final mix: Its very important to have a reference you like and also listen on all other kinds of speakers to your mixes, to finally end up again with your reference and if you are happy then after all that with the result you produced, listening on it on your reference speakers, ie your monitors, then you did your job well. Thats how it works with monitors. Yamaha's are quite good sounding monitors as well, but there are many around nowadays.
Cheers,
Hans.