Hello mate.
I listened to your piece, very nice with great sound and good atmosphere.
I make a range of EDM & Electronica, and Sonar 8.5 is perfect for that! I'm not sure what PE is but I use Producer and to upgrade isn't that much if you watchout for the special offers that come.
People often think that they need Apple's Logic or Cubase to make great dance music as when you see EDM prodcuers giving a demo like Armin van Buuren or Mike Koglin, etc, they're always using Logic but you only need to look at the blog of Ilan Bluestone who's at the top of his game ATM to see that he uses Sonar 8.5 Pro!!!
Also, people like Jaytech (Prog House) use Ableton, Daniel Kandi uses Reason, Adam Szabo uses FL Studio and some use Cubase (can't remember who but I did read a number of producers who did). The poor relation has always been Sonar but as I've already said, Bluestone has proved it's just as capable. Personally, from people I know who use Logic, they seem to experience more bugs and crashes than anyone else - must be Apple's insistence on using AUs instead of a tried and tested VST format but on that basis, I think it's overpriced and over rated as someone has yet to explain to me what's so good about it!!!
I'm mainly a hardware guy as you'll see from my list but I do use some VSTs and have tried quite a few. Apart from NI's Massive, you'll find one of the most used synths in EDM is Sylenth and there's good reason for that. It sounds like an analogue synth, it looks like an analogue synth and is really straight forward to use. I don't like a lot of synth VSTs as I think their interface is confusing, not intuitive and too complex and on that basis, I'm fussy what I use. Hell, some of them look like they have an interface like a spaceship and if I have to spend an age learning a unique interface, I'm off elsewhere frankly.
Other VSTs worth noting are Spectrasonics Omnisphere, Rob Papen's VSTs (both used by Armin v B) and one which was used quite a lot during the early to mid 00s, Novation's V-Station which some may say is a bit old now but fact is this little beauty produced all those lovely Supersaw like Trance sounds during that period and still contains most of the elements that a modern VST has. I have both, the A-Station which is hardware and the V-Station. It's available for a small sum of money now but often gets overlooked (snobbery maybe?) but a very capable fat sounding synth as it has a double-saw feature which you can enable on all three oscillators and then stick unison on. I think it achieves a very close sounding JP supersaw, closer than most other VSTs can do which is a staple Trance sound.
To hear exactly what I'm taking about, check this soundset out, as the demo was done entirely on a V-Station only:
http://www.adamszabo.com/v-station-soundset/ One cool thing Sonar can do without resorting to using a CPU hogging plugin is that ducking effect that most producers use and abuse now by using a sidechain compressor whereas Sonar has the Sonitus Gate which even has a preset setting ready to produce that effect with minimal CPU overhead and no artefacts or colouration of sound that you often get with a compressor!
I can't speak about loops or samples as I personally don't use them as I always create my own drums, even if I hear a loop I like, as I was brought up in the days of the Roland TRs so I've got efficient at tapping rhythms in and quantising on the fly as well as using the step sequencer if I need. However, don't forget the Session Drummer as I use that a lot especially for sampling my old drum machines and bringing into Sonar so that I can get the flexibility of the DAW so I often sample drum sounds I've created in my real studio into a wav file and then into Session drummer.
That's a few of the useful features that I can think of for now to help you with EDM so I hope that helps.
Don't forget to look at the free VSTs thread as there are some cracking freebies around.
Cheers.