Fill up the pc build questionnaire template first.
But still let me try.
* AMD AthlonII X3 425 -- 3k
* Asus M4N68T-M -- 2.4k
* Corsair 2GB DDR3 RAM -- 1.1k
* WDC Blue 500GB -- 1.7k
* LG 22x DVD RW Drive -- 0.9k
* Frontech Case + 500W PSU -- 1k
* Acer 16'' LED -- 4.2k
* Keyboard + Mouse -- 0.4k
* Craetive A-35 speakers -- 0.4k
Total ---- 15.1k
But fill up the template first. And those assembled PCs are best suited for Internet Cafes. For home one needs a good system which can last long unlike the PC at 13k.
But again, fill up the ques. Template first for a better suggestion.
BTW u have increased ur budget to 18k so why are u looking for a 13k PC.