Anyone use Reason?

I've got the demo and I'm playing around with it trying to get that Ferry Corsten / AvB bass sound, like in Gouryella, Kathy's Song etc.

The kinda wobbly squelchy, yet deep sound.

Any tips or pointers as to how to get it?

I know the basics of synthesis, but not enough to know how to replicate a certain sound from scratch.

Thanks!

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Wanted! - Money or consider swaps:
BT Mercury & Solace (Black Hole 12" - BLH112) - got it! c/o discogs marketplace
DJ Tiesto Sparkles Remix (Transa / Airscape / Starecase) (Black Hole 12" - BLH118) - mine at last! Thanks to Gemm
San Feel My Love / Stroke (In Trance We Trust 12" - ITWT302) - in my collection finally! discogs marketplace again
Nunca House Of Doom (In Trance We Trust 12" - ITWT300) - if you have this in an ITWT sleeve with the promo sheet let me know!