The only thing that is good in gurney is the fruit rojak... and yes, it's very touristy!
Go to Lebuh Keng Kwee for the famous chendol if you like this dessert. The coffee shop next to it have pretty good assam laksa and kuey teow ting.
New Lane (or Jalan Macalister, depending on which one you chose to remember it, just next to Sunway hotel) has pretty good fried intestine congee & good cuttlefish kang kong; Heck, most of the stuff there are above average.
Of course if you go Kek Lok Si, might want to take the famous assam laska at the corner of Jalan Air Hitam & Jalan Pasar, but the quality not as good as last time. The other place people swear by for assam laksa is Balik Pulau, not sure where as I don't like that version. My favourite is at Farlim which is difficult to give directions to...
Some like Penang char kuay teow at lorong segamat, and the 2 sisters...
Oh heck, why not check ieatishootipost blog for some of the places they went - most of the eating places are blogged there... I think they also went places to shoot as well and is also listed there, but don't quote me on that.
Photos, I guess the usual suspects are the old georgetown area, Penang Hill, botanical gardens (look out of fierce monkeys... used to be there but I have not been there for a long time), the burmese temple (lying buddha), snake temple, etc. Have not really gone around to take pictures there as I was too busy eating all the stuff I like, and I have been to penang almost every year - more for visitation than photo sessions.
Him Heang is good for Beh Teh Saw, Tambun (Tao Sah Piah), & Phong Peah (is just bigger size Beh Teh Saw from what I can recall); Ghee Hiang for Hneoh Pneah (made of brown sugar) & Oriental Almond Cookies. Of course Ghee Hiang has Beh Teh Saw, Tambun, and Phong Peah, so different people like different store's version. Both have stores along Jalan Burmah.