KETAN - outside of being a great way to test your reflexes, it is a fun shot. The 30D is the best all-around camera I've found, it makes me a lot of money.
The strobe and tutorial method mentioned above, is one way of getting these....assuming you have the bucks to spend.
Your kit lens may be the limiting factor here.
It takes up to 80 clicks to get the one I want at times. Patience is the key. Here how I do a basic setup.....
I use 2 cheap, 100w, Halogen work lights from Home depot. A piece of black non-reflective cloth for a backdrop.
Setup your camera (tripod of course) as close as you can to the target area. A remote cable release is almost mandatory. Vibration of any kind is a kiss-of-death.
Now, get a round cake pan that is at least 2" deep. fill to about 2/3 with water and place it on your tabletop, not too close to the backdrop.
Rig a crossbar about 18" above the pan. use handy clamps so you can raise and lower the crossbar. Find a straight piece of rod or pvc tubing and clamp it temporarily to the crossbar. Be sure it is vertical.
Now, trot around behind your camera and do all your manual setups for the camera, focusing just above where the "drop" will fall. Mark the crossbar with a sharpie.
The tricky part is to release whatever you are dropping and trigger your shutter with the right timing. Don't forget, the higher you drop from, the more time you have to react. Also the higher, the greater the 'splash'.
It is a fun project for a rainy afternoon.
Variations of this I've done are.... golf ball in milk, large ball from a wheel bearing into thinned oil, anything into a water/glycerin mix
When you acheive succes, you'll be hooked.