Rockman? I think I've never heard of this brand so I can't really say anything about it. The site looks strange since it isn't primarly a music shop so I would recommend you to check out a more established music shop before ordering. And for the bass I recommend you for example a Squier bass since I think it's good one for a new player and I think you can get them in your prize range but there are a little more expencive once too. If you are european Thomann would be a good place to order from.
Oh yeah this should be in the talk instruments thread. Next time search the forum more closely before making a new thread.
I hope this helped you