Boy am I glad I spent the extra $100 on mine.
My E510 was a great camera but it has been in the shop more times than anyone would've expected. First trip in was for a fried mother board ... the camera simply would not power up. Second time was for a broken pin in the memory card slot (broken during normal use) and when they fixed that problem they returned it to me with the TTL display not working. So yesterday I went back to the store fully expecting a hassle and 20 min later walked out with a brand new E520 to replace my E510. They even exchanged my 14 - 45 with the new version of the lens.. the 14 - 42.... damnit I lost 3 mm of focal length lol.
Anyway .. I am now the proud owner of an E520. Here's hoping ym E500 falls apart before October and I get it upgraded to the E520 as well lol.