So a lot of good tips already.
As said use eq. The trick is to get a good balance between your kick and bass first. It depens on what you want do you want the kick or the bass to drive your song. Try to eq out frequenties that overlap in the kick and bass. This is sometimes hard to get right. When you are doing this balansing do it without compression so you can hear better what you are doing with frequenties and stuff. If you got that right start compressing the bass till it sounds right. then balance the volume of the kick and bass untill the come nicely together. If you do this right you will see that compressing the kick is not nessesary anymore. Thats a good thing because when you compress a kick you will remove some of its punch. When you have this done mix in the rest of the drum sounds untill the balance is oke. Some times its a good idea to to remove some low from the snare drum. Remove the low from all the hihats.

Now the drum andbass part of the mix is done and now start mixing in the synths and other stuff. Do not remove the low end from a synth if possible but sometimes you have to do it when it has a lot of low in it.
make a balance and listen to it if there are things that need some compression and stuff.

Becarefull with compression over the complete mix. When you compress the mix to heavy the punch of the kick will get less again.

I hope this helps a bit.