try about two feet over and two feet out pointing towards the smaller toms. In my experience i've gotten decent sounds with this, you can hear the toms, cymbals and snares with no problem, the problem is tweaking the eq's on those you'll only really be able to give it a light touch up with the eq before you start making one part or another sound bad so get the best sound you can work with the placement if you don't get what you want from that. With the secon 603 try it in the kick, be careful with the condensor down there though you can make it clip keep it just in the hole. you may really want to consider using the sm57 if you wanna mic the kick. another option is to mic the beater where is strikes the head, you'll get less thud but more click. Another way to use both 603's is to do one of the many overhead setups, i prefer xy but i've experimented with a lot of different ways. micing with both as overheads is going to give you a stereo sound so you can pan the cymbals left and right, which IMO gives you a better sound. Pretty much man you just need to practice as many different styles of micing as possible til you get a sound that works for you.