New editions of XP should have SP2 already included.
I bought a full copy of XP Home earlier this year & that was the case.
If unsure, check with the vendor before buying, but unless the machine's old stock I would think that SP2 will be there.
Fujitsu Lifebook P727 laptop review
Microsoft Paint set to die after 32 years
Mac power user tips and hidden tricks
Comment désactiver la saisie intuitive et paramétrer votre clavier ?