Laptop for EDA applications/ CAD work

Laptop for EDA applications/ CAD work

Hi All..
1_What is your budget?
INR 45,000(appx USD$960) or less
2_What is the size of the notebook that you are considering?
15.6"
3_What screen resolution do you want?
I don't have much knowledge on this. It should not strain eyes!! already have eye strain problems
4_Do you need a portable or desktop replacement laptop?
absolutely a desktop replacement..
5_How much battery life do you need?
3 hrs should be fine
6_Do you want to play games with your laptop? If so then please list the games that you want to with the settings that you want for these games. (Low,Medium or High)?
Not a hardcore gamer.. I play casually.. still novice
7_What other tasks do you want to do with your laptop? (Photo / Video editing,watching movies, Etc.)
Mainly EDA, Electronics design softwares, multitask with >3 apllications running (like excel, winamp, applications like allegro, orcad capture etc)
8_How much storage (H.D.D Capacity) do you need?
based on price & available configuration constraint
9_If you are considering specific sites to buy from, please post their links.
NA
10_How long do you want to keep your laptop?
I wish/hope 3-4 years trouble free operation(means no extra money to be spent during this time)

11_What kind of Optical drive do you need? DVD ROM/Writer,Bluray ROM/Writer,Etc ?
DVD
12_Please tell us about the brands that you prefer to buy from them and the brands that you don't like and explain the reasons.
Dell. Don't know much about all brands. But reliability is most important
13_What country do you live in?
INDIA

14_Please tell us any additional information if needed.
1)It seems to me a i5 laptop is better choice..not sure whether the below one exceeds my functional(processing) requirements or can I downgrade to i3.
2) Also I need to use WinXP to run these applications.
3) Please check below one & give you opinion-
Dell™ Inspiron 15R New Laptop (T540505IN8)
http://www1.ap.dell.com/in/en/home/notebooks/inspiron-1...
4) please tell me what can I expect from this one if I buy it. are there any better alternatives?
5) If I buy the above one what are the things/options I must lok out & opt for?
Thanks
SNGMK