My monitor is 1650*1050, though I have windows in 1440*900 because Windows 7 makes my screen fuzzy for a reason I haven't been able to come up with.
At 100% in Excel it still fits, but my lazy eyes would rather view them on 85%. I guess they're still readible now though in the OP so I may just be exaggerating. I don't use photoshop, but do Insert>Screenshot in Word to capture the Excel.