Hey dood... Get yourself over to PsyMusic.co.uk and check out the Media Production section. The Production section on Isratrance is also good. And YouTube is your friend when starting out!
As for VSTs, well, one good psytrance-specific VST is G-Sonique's Alien303. This plug-in is designed for psytrance bass synthesis, and though the limitation of parameters is a bit lame, it has a good sound and is very cheap (or very very cheap if you're like me

*cough* ). Synth-wise, I think Massive is brilliant for atmospherics; it has wicked modulation controls that make for some very intricate sounds - something psytrance heavily relies on. Albino is also great for squelches and FM sounds (those ripping, metallic leads you often hear in psytrance).
Sample-wise, the Vengeance sample packs have some good FX folders, as does the Databecker sample pack. Thomas Penton Essential Drums is fantastic for percussion...
Really, though, if you're just starting out in music production, the best thing you can do is to get to know your basics. Learn how to use your DAW as much as you can, as obviously this is where you'll be spending all of your time. Take as much time as possible learning synthesis, as this is really important if you want to learn how to make psytrance. Hope you enjoy this fun quest - if you're already in the know on synthesis 'n' such, feel free to ask more questions & I'll try an' answer them for you!
Peaaace.