Myself Manoj, I am using Sony K310i from last one and half year. It almost includes all the features that u can look within your budget. I am using this cell for Internet connection at my home. And still I didnt face any problem with this. Style and Look is also cool. One area where we have to compromise is BlueTooth and VGA Camera. It doesn have BlueTooth. We can use MP3 ringtones also which is good.
We can load Games from Internet. Good message storing capacity. We can load new applications related to Internet like Morange messanger or Opera Browser. That means we can use Internet on phone(NOP) also.
If you have limited budget and want to use Internet Enabled on PC use Sony K310i. Small money for large features. But it does not support Memory Extend facility. In built memory is 15 Mb but we can not increase it. No memory card facility. Else it is Small design shape and handy cell phone you can have.
Thanks.