1/64 (HO) is compact but quite a lot different fom 1/32 in behaviour.
They remind me of demented insects!
As in other scales, an HO set is by FAR the best value and highly recommended way to start out. You can often find amazingly cheap sets from Tyco/Mattell and even Scalextric at around half the list price. At those prices, it won't break the bank, should you change your mind later.
Generally, HO track is hard plastic and a LOT easier to assemble/disassemble than any 1/32 track, which is greatly in its favour and from which 1/32 manufacturers could perhaps learn some useful lessons.
One of the really favoured makes is Tomy (was AFX), but this I believe is still not available in complete sets in UK, although individual cars and track sections can be sourced from one or two specialists. I imported two large 4-lane \Tomy sets direct from USA and the price, even with shipping and some tax was still WAY lower than buying the same sets as individual parts over here. The one drawback was paying shipping on 110 volt power supplies that I can't use here!
I will check my bookmarks for useful contacts later and try to remember to post them.