Don't worry about rogue melee attacks. The four Rogue at-wills are:
1) Deft Strike — Dex vs. AC, 1[W]+Dex modifier damage, you must use a crossbow, light blade, or sling. You can move two squares before using the attack.
2) Piercing Strike — Dex vs. Reflex, 1[W]+Dex modifier damage, you must use a light blade.
3) Riposte Strike — Dex vs. AC, 1[W]+Dex modifier damage, you must use a light blade, if your target attacks you before the start of your next turn you get an immediate Strength-based interrupt attack against that target.
4) Sky Floursh — Dex vs. AC, 1[W]+Dex modifier+Cha modifer damage, you must use a crossbow, light blade, or sling.