A delta E of 1.30 is not bad... almost a not noticable difference for the human eye.
Don't forget that this doesn't tell you if your match will be good with the output of your printer.
It just tells you how good your monitor profile is.
Check a gradation going from black to white to find out if your calibration is acceptable.
Thanks for the replys. At least I know I'm on the right track now.
How would I check my gradation. Do I need to print a test pattern from photoshop? Also, anything else that I should be aware of?