tosh yes you could do so basically the so pays the tax bill so no big lump sums??
Ronnie,
Firstly, the difference between a standing order and a direct debit basically means that with a standing order you have complete control over how much and when you pay; with a direct debit, a certified company can withdraw funds from your bank at anytime.
So we're talking standing order stuff here, it's easy to do.
The tax man's account details are as follows:
Account number: 23456000
Sort Code: 10-50-41
You need to use your UTR (Unique Tax Reference (you'll find it on your tax statements)) as a reference when inputing the details.
Obviously, firstly phone the tax man and check that the details I've given are correct; I could be giving you my bank details.

As to how much you pay them, have a look at how much tax you paid last year, divide that by 12 (months) and add maybe 10%. That'll be your monthly standing order payment amount; though you may have to pay more depending on how much your turnover increases.
You'll still have to make the Jan 31st payment though; but if that's giving you problems you can phone the tax man; they're 'fairly nice' people and arrange a payment plan. I've had to do that in the past.