[CPU+MOBO]Upgrading @7k

Please help my friend upgrade his old system

Current config:
dual core Intel e5300
intel pr31 mobo
512mb galaxy 8600gs
2gb ddr2 ram

*Max. budget
7k

*Components required
Only mobo and cpu

*Purpose
Web browsing , photoshop , gaming (fps doesn't matter)-counter strike ,team fortress 2 ,gta

*Operating system
Planning to dual boot ubuntu and windows 7

*Planning to overclock
No

*Purchase
Online or local

*Assembly
Will be done by assembler

*Time of purchase
As quick as possible probably this month itself

*Other
Need the best combo available within 7k.Open to amd

Thanks in advance

get pentium g2020 @3.5k and gigabyte ga-h61m-d2h at 3.5k.
you need to change your ram.get corsair value select 2gb. try to sell old components. i dont really see an upgrade option with that low budget though.

increase budget a little (~10k) and get a i3 instead.

You may also go for used i3 2/3xxx