I'd recommend the Foscam FI8910W. It's inexpensive, easy to setup, can be access from any computer with an internet connection, or your Apple/Android mobile devices; just be sure to setup port forwarding on your router and choose a non-default port when you setup the camera! It has a great picture as it's 480 resolution, includes audio in case you're trying to listen for pumps running, etc. You can also pan and tilt and has an outstanding night mode. Most importantly, it mechanically adjust incoming light so you don't end up with over-saturation when your lights are on.
Furthermore, it can be used in wireless or wired mode and has a password-protected interface. The wireless is also compatible with WPA2...if you put it on the wireless network, you'll need to be sure your wireless network is secured. If you're monitoring your special tomato plants, you might want to consider just using the wired option to eliminate some minimal security concern, if you can pull that off.
Foscam also has a newer model that uses H.264 compression and even higher resolution, but they cost much more and current firmware is reported to provide for an unreliable and low resolution picture, not to mention reports of poor performance in low light. I don't recommend you waste your money on this model.
Oh and I almost forgot to mention, it has two-way audio so you can talk to your ladies, if you're in to that.
Just my $0.02.
