For my productions i use Logic studio on a MacBook with Dynaudio monitors here is a photo of my studio (well it could hardly be called a studio)
I also use a fair amount of other software
here is a list of synth plug-ins I like to use :
For simple old school analogue type sounds. The filter particularly warm/fat, it is modeled on the in the Korg Ms-20
it is particularly good for bass and pads but it's still a great all-round synth and it's the one that I use the most. The interface is quite unusual as you can see but personally I think it's quite intuitive and at €69 its a real bargain
U-he Tyrell N6 (the website in german)
I found this synth the other day and i'm completely blown away at how sweet and tasty sounding it is, i would be happy paying quite a lot for it. But it's freeware for both Mac and PC so you really need to get your hands on this one.