Some Digital SLRs come with lenses and some you must buy separately. You can get DSLRs that have over 20 MP resolution but most have around 10 - 12 MP. They have many advantages over point and shoot cameras like shorter delays between taking pictures.
"Full time live-view...High-quality lens with optical stabilization...Cons: Subpar image-quality...Not much headroom in RAW captures...Very pricey...Subpar image-quality...Not much headroom in RAW captures...Very pricey...Poor...Panasonic's Lumix DMC-L10 packs 10-megapixels, a decent lens (in the kit version), and a detachable live-view viewfinder...The Panasonic Lumix DMC-L10 feels solid and purposeful, both necessary qualities for an expensive, prosumer DSLR...Panasonic's..." read more »
Retrevo's Recommendation: Good Buy if you want high end