Sit in your listening position and move the speakers around until it sounds good. If moving them around is not an option, just put them where they have to go and deal with it.
Think about your room before you buy speakers. If you are really into imaging, buy smaller speakers. The main problems will be with the longer frequencies (bass) coupling with the walls (and anything else in the room). I don't think it matters much whether the speaker is ported or not, those low frequencies are going to couple with the walls in all directions. The further way from the walls, the less energy will be presented to the reflective surfaces, thus the bass will be better tamed. If you must have your speakers near a wall, DSP may well be a good option. Room treatments work well, but they can get expensive (and if you are forced to put the speakers next to the wall, there is a high likelihood that bass traps and acoustic panels will also be forbidden).
Think about your room before you buy speakers. If you are really into imaging, buy smaller speakers. The main problems will be with the longer frequencies (bass) coupling with the walls (and anything else in the room). I don't think it matters much whether the speaker is ported or not, those low frequencies are going to couple with the walls in all directions. The further way from the walls, the less energy will be presented to the reflective surfaces, thus the bass will be better tamed. If you must have your speakers near a wall, DSP may well be a good option. Room treatments work well, but they can get expensive (and if you are forced to put the speakers next to the wall, there is a high likelihood that bass traps and acoustic panels will also be forbidden).