Driving into central London on a Saturday

[MesoForm]

I'm off to London for a night but unfortunately it's on a rail strike day (travelling down on Saturday, back on the Sunday) so I'm looking at alternative options of how to get into the West End. How bad is driving in central London? I've always heard horror stories but as it's not something I've ever needed to do so I don't if it's still that bad or whether it's fine if you just chill out and don't expect to be there quickly.

What would be the alternative options if driving in from Norwich is to be avoided? From what I can tell my options are
1) National Express bus
2) Driving down to a tube stop that has a car park (ie. Epping) and hoping there's a space
3) Book a space in an NCP somewhere like Covent Garden and just driving in

[MesoForm]

Thanks for the replies, it looks like the rail timetable will get released on Tuesday so that will be when I make my decision and it looks like parking in the centre isn't too bad. The hotel is near to Holborn tube station.

[MesoForm]

Thanks for all the replies - that JustPark app allowed us to get a space under some flats a 10 minute taxi ride from the hotel for £30 for the two days, even with £30 of congestion charge and 32mpg it's not far off being cheaper than the train. Allowed us to not have to rely on public transport at all.
Driving was an utter non-event, only thing I changed was putting the satnav on spoken instructions as there was a lot more going on around (pedestrians, cyclists, taxis lurching about) than driving in Norfolk!