Exercise Bike or Cross Trainer???????

beano25

Hi everyone, I am looking at buying an exercise bike, I have to decide between the Pro Form 225 ZLX and the Viavito ( cant find any reviews on this bike but does have a good spec)
Any way I am keen to get one in the next couple of days preferably before the weekend, as I was looking at the gym equipment I thought about using a cross trainer instead. I have not used a cross trainer before, but I can see its more of a full body workout where as the bike is mainly the legs. Can anyone here give me some pros and cons on this as I did have my heart set on a bike.
I have done a brief search and I am growing towards the Reebok ZR7 Cross trainer.
any help and info is much appreciated !