Is it wiser to build desktop instead of buying package....?

If isn't really possible to give focused advice without knowing what you want the computer to be able to do. Does it need to be able to handle gaming, video editing, or just general browsing, downloading and watching video/listening to music and office software? Also, if you don't have any experience with computer hardware, to the extent you don't even know what configuration you want or what components you need then it probably isn't a good idea to try and build it yourself.

Depends really... how long do you have to build one... im guessing its your first so make sure you do lots of research and built it for what you want eg gaming or cad or just browesing. Building a computer is a really good way to get a high spec pc for less cash. I built mine and i would never buy a premade one. decided what u want it for then decided if u want to go amd or intel. you have $700 which i guess is around £640 or something....so you have plenty of cash to play with. most important things to focus on are your cpu ram mobo and gpu. Make sure you get a decent psu to power your baby. If you need to buy a monitor too then $700 isnt a huge amount but still enough. Take your time...else you will make a mistake and end up spending more cash than you need to

go to tomshardware.com and look at their budget gaming build. they run this about once every six months. btw, tomshardware does not include the cost of the operating system in their figures, so add another $100 to what they say

Depends really... how long do you have to build one... im guessing its your first so make sure you do lots of research and built it for what you want eg gaming or cad or just browesing. Building a computer is a really good way to get a high spec pc for less cash. I built mine and i would never buy a premade one. decided what u want it for then decided if u want to go amd or intel. you have $700 which i guess is around £640 or something....so you have plenty of cash to play with. most important things to focus on are your cpu ram mobo and gpu. Make sure you get a decent psu to power your baby. If you need to buy a monitor too then $700 isnt a huge amount but still enough. Take your time...else you will make a mistake and end up spending more cash than you need to

go to tomshardware.com and look at their budget gaming build. they run this about once every six months. btw, tomshardware does not include the cost of the operating system in their figures, so add another $100 to what they say