Thanks so much for the replies. Abacus (Bill) - the comparison of each model is exactly what I was looking to see, cheers.

I currently have a strictly VST software setup. I use Cubase 6 and many VSTs including Real guitar, Halion Sonic, a plethora of drum VSTs (studio drummer, ezdrummer, addictive drums....) Omnisphere ++many more++

It is just the immediacy of an arranger I was wanting. Quickly switch on and jam, easy to sketch new material when you just get lost in the music without waiting for everything to boot up and the odd crash. My PC is an i7 with 12gb ram so relatively powerful and I love the software route - however I just wanted to cover all bases and integrate an arranger. My current keyboard is a Roland Juno di - I sold the rest of my keys and it is now something I really regret. I sold my Korg Trinity V3 pro and Korg Karma, and only at Christmas I made the biggest mistake of the lot.........selling my Roland RD700sx (a few years ago I also had a Tyros 2!!).

So to summise - I have made a roaring balls up with selling keys and now want to get back to a position that I am happy and all bases covered. I am flirting with the idea of just sticking with the software and maybe investing in a new midi controller (the roland juno di does a job but I'm not a fan of the keybed) but there is just a nagging feeling that I would enjoy having an arranger as part of my setup.

I'll keep an eye out for that all important bargain - and if I see it I may just dive in. Until then it would be a good idea if I got back to writing songs instead of CONSTANTLY changing gear and TALKING about what I'm going to do next.

Thanks folks for the advice.