Loads . . .
But £600 generally won’t get you a good fork, which on a hardtail is very important!
Going on what Evans Cycles have on their website, the Genesis Core 20 2009 Mountain Bike, looks
decent value, been knocked down in price, it’s got a RS Tora fork which is the best of the lower end forks.
You don’t want a fork any lower down the pecking order than this.
Will depend on where you can get it from though, try and find out.
The two you have chosen aren’t great value for the money as Kona are pretty poorly specced on the value for money front.
Try and spend as much as possible!
maybe thisnice frame, decent fork, good brakes, just a bit more!