I am planning to buy a Dell Inspiron 1525. Is it the right choice or should i consider something else ?
I use the Inspiron 1525 with Debian 'Sid' on it and it is working perfectly for me. Suspend/resume, suspend to RAM, camera, wifi all work fine. The wifi didn't work with the stable distribution of Debian (and I didn't have enough patience to keep trying, so I just used Sid).
Just make sure you order the model with the intel wifi chip unless you want to be bothered with the broadcom chipset and proprietary drivers.
Although, as an aside. I'd advice you to get a Thinkpad instead. I'm not particularly fond of the Inspiron's build quality. It just feels flimsy.