This is definately THE drumsynth you want to have. The soundquality is very high and it has lots of ways to control the sounds. Some facts:

Virtual analog sound synthesis
31 sounds kits with over 700 sounds included
24 percussion sounds per set, spread over two octaves.

* 3 oscillators, two offering tuned waveforms, with the third offering noise
* Separate envelope generators for each waveform, with individual decay rates
* Distortion control for the tuned oscillator waveform
* Low pass resonant filter
* Multi-timbral operation

Individual volume,pan and reverb settings. Visual feedback on each drum. Programmable reverb unit. Comes with one set of samples.

If you need 808, 909 like drums especially kicks then this one is your choice. Very nice and easy to use interface, good sound and low CPU usage. It is a breeze to learn and a lot of fun to use.

Discontinued
Difficulty: easy CPU: low  Listen   Source

Perhaps the best drum synth for emulating 909 and 808 like kicks. This one is really amazing it offers so many functions to alter the sound. The GUI is great and easy to navigate. The sound of it is crystal clear. A must have in your drum vsti collection!

Key features:

* Graphical envelopes for amplitude and modulation
* Load / save presets for single sounds
* Simple but effective effect section for each sound with distortion and bitcrusher and a filter.
* 6 Stereo outputs, assignable for each sound.
* All parameters can be automated (midi-CC not yet supported)

Price: Free
Difficulty: easy CPU: low   Source

DrumDragon creates Drum or any one-shot sounds. DrumDragon creates not only Drums, but also any one-shot sounds. If you cannot understand how to use this difficult product without documents, listen MP3 Demo Song (http://www5.plala.or.jp/wantech/vst/DrumDragon.mp3) uses only DrumDragon.

Multiple outputs. Visual feedback on each drum. Comes with one set of samples to start with. Requires a "multiple output" option in your host.

ErsDrums consists of ten (10) drum sounds:

Two Kicks.
Two Snares.
Two Blipps.
One Clap.
One Claves.
One Hihat (Open/Closed).
One Crash.

More

This plugin can create some great decent drum sounds. It offers a lot of control over your sounds. The sound of the µTonic is 100% synthetic and rendered in real-time. No samples or pre-rendered waveforms are used.

Nice tiny versatile drum synth featuring 2 kick drums, 2 snares, Hihat, Metal, Tom. The drum panels can be removed to reveal hidden parameters. It also has an onboard drum mixer and uses multiple outputs. Creating sounds with this one is really easy and you can alter the sounds a lot. The hidden features are a nice addition to this plugin. The plugin is very low in cpu usage.