Mountain Biking - Newbie reccomendation

Ive been into cycling for a bit, have a Barracuda Overload, but its WAY too heavy! Dual suspension, just saps all of my pedal power. I get smoked by my brothers Gary Fisher YAHOO, which cost less than my behemoth, impressively light.

Im interested in selling the Barricuda, and buying a new bike off the net`, i like the Claud Butler "Pine Lake 2003"

The Claud Butler URBAN 100 looks nice too, probably a bit lighter

I want it to be nice and light, but strong aswell, which bike would best suit

Has anyone had any experience with these Claud Butler bikes?

Also, What is the point in Disc brakes, is it just another fad like the cheapo dual suspension bikes?

Thanks for all the help! =)

i dont know anything about the bikes, but i would not call disk brakes a fad.
simply put well set up disk brakes simply work better.
they stop better, work when wet, and eliminate problems with heating up the rim.
it seems like some people do have some problems breaking them in and geting them set up properly but they are a good breaking system.

Disks work esp well in the mud.
Claude Butler used to be a fine company, back in the 1960s, and Ive even seen one modern custom frames with that label, but mostly they are moderately OK Taiwanese factory frames with low-end Shimano stuff. Rideable but not good.
The Pine Lake (MTB wheels) and the urban 100 (larger 700c wheels) are OK for mixed use on roads and good trails, but not for more extreme or sporty MTBing. You could ride them on more extreme trails if you take it carefully, but no "big air" or kamikaze descents.
At this price range, you really want to keep things simple and avoid heavy wannabe bikes. Look for a lightweight frame and strong wheels, rather than fancy suspension or disk brakes. For frame material look for aluminium or chromoly steel, but not hi-tensile steel.
If you can scrape more cash you get far more bike.The best entry-level MTb for serious riding has to be Specilized Hardrock for £299. You can check out some decent alternatives at
http://www2.evanscycles.com/frameset.html

Dont forget to check out last years models for good value.

Wow, thats a bit of a let down!
I have about 400 quid or so to spend, but thought about getting a good few accesories, new tyres, helmet, computer etc, but ill look into the Hard rock, thanks guys! =)

how do i set the time on my computer?

I guess it depends on the model of your computer.

Discs are the real deal man, just about every brake company makes them, and they have a good history, what do you think your car uses to stop? thats right discs.