I just bought my first machine last month, and was initially trying to decide between those two models. I agree with what others have said, try and sew on both of them before you buy. That helped me a lot on my decision making. I know a lot of people love the Magnolia 7330, but when I sewed on it myself, it just wasn't as sturdy as the Juki, the parts seemed cheaper.
I ended up buying the Juki HZL-210 and I adore it! The automatic thread cutter sold me on upgrading from the HZL-110, but I think they are nearly identical machines. I was a little worried, because there just aren't as many consumer reviews of the Juki, but have been nothing but extremely happy with mine. Good luck making your decision!