I would spend the extra $5 for the customkit. It's a bargain. Most of these refurbs come with a 90 day warranty. I would also replace your power supply to a decent brand, such as antec, corsair, seasonic, ocz, or enermax. Newegg has had the corsair and antec 400w ps for around $20 after rebate recently. Both will last a long time, and come with 3 year warranties.