Kotkas has released Paax, a free VSTi sampler for Windows with the functionality of many commercial software and hardware samplers, yet it's quite easy to use, plus it's free.

Features:

• Plays 8/16 bit, mono/stereo wav files at any sample rate.
• Up to 128 presets per bank.
• Up to 84 splits per preset and 4 velocity-triggered samples per split.
• 16 simultaneous voices.
• Low CPU consumption.
• RAM save scheme (only active presets' samples are loaded at one time).
• Low aliasing resampling technology, 32 bit audio engine.
• 3 envelope controls (ADSR) per preset: amplitude, pitch and filter cutoff.
• 3 configurable LFOs per preset: tremolo, vibrato and filter cutoff.
• All envelopes and oscillators can be synchronized to MIDI tempo.
• Managing presets, splits and samples is simpler than ever!
• Bank format offers choice for embedded or referenced samples.
• VST 2.3 compatible.