I need to purchase or Upgrade my PC.Currently I have DUAL Core 1.86 GhZ and 1 GB RAM. an 80 GB Hard Disk and XP opertaion system
with My requirement is:-

1. currently I have a VFP application that takes around 2 Hours for Data processing (Makes Changes in text files) for around 80000 files.

2 After the files are being changed, they are to be converted into other format using PS2PDF tools like, that takes another 4 Hours,

Thus my total times comes around 6 to 6 HRS. I need to drastically cut it down. I am planning to buy i7 4770k Processor, 8 GB RAM, and 1 TB HDD, 2 GB Graphics card with windows 7 or 8,

Kinldy Guide what would be best configration. Also Guide...

1, Should I go for Laptop or Desktop ?
2 Assembeled or Branded One ?
3 If Brabded, which Brand and where to Buy online?
4 Are there any Cheap and relaible sites from where I could directly purchase spares or compete Desktop or Laptop.
5 What is the difference between BOX and Tray i7 4770k as there is a difference of rate in the two.

Regards
Code Box