Well since you have a lot of Sentinel and Junkz, then why not those first? while your still building up your target deck; since we're a little slow due to credit problems. XD Putting Lost Hog and Otome would be interesting though if only they'd appear in ur hand always.
Try to buy new cards now. When new caracters apper (like this friday) the average price for the cards get lower because there is a surplus of "not wanted" cards. All Stars are good and cheap like rain now. I buyed Eyrton for 500 clintz and Ratanah for 1100 clintz!!! Two good cards for less than 2000 clintz. Just be alert for market price flutuations