JetMouse
There is NO way to get around the legal need for printed charts, in the UK or anywhere in Europe that I know about. Too many people want to make money out of selling paper!
I agree with Bose-x that the Jepp flight planning software is very slick (I've seen it demo'd). But different people have different views on flight planning.
For my non-airways flying I use Navbox Pro which is about £60 (which includes a year's worth of downloadable monthly database updates); it prints out simple chart sections, the plog, ICAO flight plan ready to fax, etc. Very complete and very accurate. The best £60 ever spent on flying. You must still use the printed chart for airspace, MSA, etc reference.
I then pay about £50/year to Avbrief for weather (basically short and long TAFs and some miscellaneous other stuff e.g. rain radar, most of it available for all of civilised Europe).
The final essential thing are Notams which I get free from the AIS website (currently the only official channel in the UK that is actually usable).
So the process is
Chart+Navbox
Avbrief
(other weather sites if going away for >1 day)
Notams
FLY
(all done in well under an hour, usually). None of this silly all-day flight planning nonsense.
I don't think ANY money you pay will buy you better weather data than you can get from a combination of Avbrief (which offers a good collection of it all in one place) and various free weather sites. There are excellent (non-amateur) weather sites outside the UK which avoid the UK Met office ripoff.