Here's a link to a review page which should be really useful.
http://reviews.harmony-central.com/reviews/Ele ctric%20Bass
I've noticed that Wesleys have taken over the guitars for sale section on ebay so I'm guessing you might be buying it online? These are Korean made basses which look flash but are built down to a price.
My advice would be never to do this without playing it first. Go to a music store and actually play the basses you are considering buying for a good 20 mins each to see which feel and sound right for you.
Or just buy the cheapest Yamaha, Ibanez, Aria or Westone you can find!!...should be loads of offers on now for Xmas!