VPCEJ190X 17.3'' or VPCF2290X 16.4'': Which one should I buy?

I am a die hard fan of Sony Vaio. I already have a 15.4'' Vaio VGN-FS115B model purchased in the UK in May 2005. It is more than 6 years old and still works well but has been slow when using internet, MS office, Adobe photoshop altogether. It is a 60GB HD with 512MB RAM, 1280x800 TFT display (I love the display which is better than most of the current E series).

I am planning of buying a new Sony vaio with a wider screen and with latest i7 processor, HD display. I will be using this laptop mainly for internet, MS office, picture editing software, movies, music. I play games very rarely.

I was initially looking at the EJ series 17.3'' display in sonystyle.com (VPCEJ190X CTO). But they do not have a i7, a backlit keyboard, bluetooth in the EJ series.

I was chatting with Sonystyle sales team. One of them suggested the F series as it has the i7, a backlit keyboard, bluetooth.

I am really concerned about the thick lid/bezel and the fan noise in the F series model.

Please let me know if I should go for the EJ series with customizable option to i5 (but no backlit keyboard, bluetooth) or the F series with i7.

If I am correct, does the laptop gets louder and hotter with an i7 quadcore processor? If so, I will be happy to stick to the EJ series with i5 processor (and does it remain less louder and hotter). I am a novice when it comes to difference between i5-i7

VPCEJ190X 17.3''-comes with 17.3" LED backlit display (1600 x 900)
VPCF2290X 16.4''- 2D Full HD LCD display (1920x1080) with LED backlight

Please let me know which one should I go for. If anyone has the VPCEJ190X 17.3'', please post your reviews.