I brew a lot of my beers 1 Kit and 1 kg dextrose; as I like the lighter style beer in the warmer climate (I live in QLD). If I lived in England I would probably go for a dark/malty ale, don't know I've never lived there. Remember beer style is personal preference. Don't get me wrong I also like an AG, but also don't have the time for it.
I get most of my dex from coles/woolworths in the 1kg bags when on special. I found 25kg bags had minimal savings, and was too much hassle measuring it out (yes I'm really a 5 minute brewer).
It you get some Light Malt Extract (LME) you can try 1/2 kg malt & 1/2kg dex with a can for a more fuller flavour with more mouthfeel. Even try 1kg malt with 1 can, see how you go. Then experiment 1kg malt with 1/2kg dex. I still use 1/2kg white sugar sometimes in my draughts.
The only other thing I would sugest with kits is to try adding hops for flavour. This can just be drop 12-15g in boiling water for 10mins and add to brew when making it up. I find the more malt, the more hops you will need to balance it out.
Remember first rule to good beer is cleaning and sanatising.
Next joys will be kegging and temperature control.
Hope this helps.