Skydemon and cheapo GPS.
I was impressed by SkyDemon light for flight planning but I really wanted a cockpit GPS that confirmed where I was and warned me about where I shouldn't be so I bought a no-name GPS from a Chinaman and installed the trial version of SkyDemon on both my MacBook (via Parallels Desktop/XP) and the cheap 'n cheerful GPS. GPS cost me £75 including DHL and VAT.
The flight planning side of it just knocks me out, it's really easy as you'd expect but absolutely complete. It tells me the weather, gives me TAFs and NOTAMs in a very readable way - very impressive. TAFs still throw up the odd error but having written Perl scripts to parse log files with no fixed format I can sympathise.
The cockpit GPS also does everything I want, which is to show where I am and warn me about infringements and hazards. A warm comfort blanket in the cockpit but it doesn't replace the map which is nice and big and you can write on it.
So for about £250 I can get great flight planning software together with a cockpit GPS. As a (small) bonus I also get a Satnav for the car - helps sell it to 'er indoors.
PM me if you'd like the URL of the Chinaman's shop and details of the unit or how to set things up.