QUOTE(Juan Carlos @ Jan 4 2009, 12:42 PM)

I've recently been to Budapest and visited a very nice music shop in the city centre where I saw some interesting sheet music by Koenneman Budapest music - cheap Urtext editions - and was tempted to buy the Well-Tempered Clavier but being at about Grade 5 level, thought I might wait ... can anyone advise me whether a Grade 5 student could face some of the WT Clavier ?
Many thanks,
J
P.S.: For "hellocello": I also welcome answers in Spanish - my native language!

You can certainly tackle many of the Preludes and Fugues at Grade 5 and they will do nothing but good for your playing.
But I would not advise you to work from the Konemann editions as they have no suggested fingerings. I think you would be better off buying the much more expensive Henle-Verlag edition which has excellent fingerings, or the Associated Board edition which has some useful inrtroductory notes to each Prelude & Fugue as well as very good fingerings.
I actually bought myself a copy of the Konemann edition because my old editions are battered and falling apart, but I am in the process of marking in my own fingerings which are mostly those suggested in the Henle and AB editions with a very few changes to suit my slightly larger than average hands. I would not like to have to work out every detail of the fingering for myself - especially as some of those suggested seem very awkward, and even anti-musical, when you first try them, but with time, and after trying many others, they usually turn out to be the best.
Relatively easy Preludes? Opinions will differ, and a lot depends on what tempo you take them, Book 1 No 1 is by far the "easiest" of the lot, but out of the rest I find these straightforward:
Book 1 Nos 2, 4, 8, 20, 22
Book 2 Nos 2, 3, 7, 9, 12, 20,
Some otherrs look easy at first, and mostly are, but turn out to present unexpected problems (e.g. Book 1 No 9, Book 2 No 4), or they are easy at a slow tempo, but not at a faster speed that suits them more. One or two are especially difficult to play clearly and accurately when taken at speed, e.g. Book 1 Nos 5 and 15, Then there are some that are perversely harder to play slowly than at a moderate speed (Book 1 No 12) because of the greater control over rhythm and dynamics that is needed!
p.s. Musically - that is, making them worth listening to, doing them justice - they are all a challenge.