The jack plane is the basic first plane for general purposes. There is
a jack plane (no5) and a fore plane (no6) here and either would be good
but I prefer the one in between (no 5 1/2) which doesn't seem to be
available new;
http://www.toolfastdirect.co.uk/acat...d_Jointer.html
By the best you can afford but at a discount price if you can find one.
Plenty of bargains on ebay. Wouldn't bother with an electric hand plane
but they are useful for rough jobs such as fitting doors but you can
easily manage without one.
The plane recommended by Set Square is not a jack plane and not what
you need yet.

cheers

Jacob